How To Find Someone's Military Discharge Status

Greg "Mouse" Gerwitz (born 1985) is an Skillful Ground forces Ranger who served alongside Jay Halstead in the 75th Ranger Regiment. He formerly held a job at the CPD Intelligence Unit as a civilian tech and surveillance expert earlier rejoining the Army Rangers in Season iv. He was portrayed past Samuel Chase.

Biography

Season ane

Mouse is first introduced in "A Beautiful Friendship" as Jay's CI, assisting him with a case. The two seem to be very close, although no one explains why or how, and he is not seen again until the next flavour.

Season 2

A year after his brief stint as Jay'south CI, Mouse next appears in "What Puts Y'all On That Ledge" when Jay helps him get the Intelligence tech job, putting frontwards his proper noun and advocating for him to Voight, who was initially hesitant to hire him. In order to secure the job, Mouse has to meet with Platt, who asks him well-nigh his time in the armed forces. When she questions him about his medical discharge, he becomes very conspicuously uncomfortable, trailing off in the middle of his answer However, Platt lets him off the hook and gives him the job, much to the joy of both Mouse and Jay.

At the end of the episode, he thanks Jay for getting him the chore, and Jay replies that Mouse was at that place for him, so now information technology'south his plough to exist there for Mouse. Mouse comments that he and Jay went through "the exact aforementioned affair out there" (unsaid to be the convoy blow Platt asked him virtually earlier), simply Mouse fell autonomously, whereas Jay seemed to land on his feet. Jay tells him non to be "so sure" before Mouse tactfully changes the field of study, asking if Jay is seeing anyone. Jay bemoans the difficulties of dating while being a cop, and he and Mouse toast to "plowing alee anyhow".

In The Three Gs, Mouse is called in past Lindsay into looking into the swain of Alvin's daughter Lexi and later past Hank into a former prostitute who Alvin was investigating.

Season 3

In "Actual Concrete Violence", Mouse is taken hostage in the vestibule of the district by Jeff Frazier in an attempt to get the Chicago P.D. to observe his missing daughter. He was non targeted by Frazier, instead being an unfortunate victim of opportunity, as he was the first non-noncombatant Frazier saw that was shut enough for him to catch and capture. He is externally very calm despite the severity of the situation, likely due to his military machine training; however, the police strength, specially Jay, are extremely concerned about him. Mouse realizes that Frazier is an army veteran and manages to engage him in conversation using his own armed services service, coming to run into him not every bit a criminal but as a desperate man looking to salvage his girl. He somewhen seizes an opportunity and pulls the Frazier's ain gun on him, assuasive the force to place him in custody. Mouse subsequently goes to visit Frazier (who apologizes "man-to-man" for holding him hostage) and promises that he will find Sarah. When he returns Frazier'southward gun to Voight as evidence, Voight notices that despite the fact that he saw ammunition in the barrel when Mouse was initially taken hostage, the gun is unloaded. This reduces Frazier'southward charges to reckless endangerment, pregnant that he can stay with his daughter instead of going to prison. Knowing that Mouse had to have removed the bullets, Voight questions him about this, only Mouse refuses to admit to tampering with the show, maintaining that Frazier must have unloaded the gun without him noticing. Over beers, Mouse afterwards confesses to Jay that he unloaded the gun, showing him a handful of bullets. He and Jay talk briefly about an incident during their deployment where one of their unit was kidnapped, and when they found him and his kidnappers, they did "a lot worse than hold a gun to someone'due south head". Mouse hides the bullets in a filing cabinet, and he and Jay drinkable to "extenuating circumstances".

During A Dead Child, a Notebook and a Lot of Maybes, Mouse helps with a example by showing surveillance cameras of a man meeting with a kid who was afterwards murdered. He is tasked with tracking him subsequently Hank alerts he is spotted.

Flavor 4

In "Made A Incorrect Plough", Mouse confesses to Jay that he is thinking nearly rejoining the Rangers. Jay immediately reacts negatively, reminding Mouse of the psychological toll the state of war took on him. Jay then gets called abroad on a case, but says that he wants Mouse to talk more with him before making a decision. In the last scene of the episode, Mouse goes to run across Voight and asks him for a favor, specifically for him to lie and say that Mouse's felony charge was committed as role of an underground performance. Voight tells him he'll call back virtually it, but doesn't offer any other information.

Three episodes later, in "A War Zone", Mouse reveals to Jay that he has received an offer from his old unit and wants to take. He has several more arguments with Jay, eventually escalating to the point where Erin has to divide them. When Voight ignores him, Mouse snaps and has an outburst in front of the entire team, telling them that this is "the only thing [he'due south] ever asked for". After talking with Erin, Jay realizes that what's all-time for him may not be the same every bit what's best for Mouse and goes to Platt, who takes care of his felony accuse and clears his tape on Jay's request. Subsequently this, he leaves his tech job and rejoins the unit, where he currently serves.

Background and Characterization

Very niggling is known about Mouse'due south family or babyhood. In "Knocked The Family Right Out", he states that he did nitrous oxide in college, which he merely attended for 2 semesters. In spite of this, he is extremely smart and proficient with tech, first shown in "What Puts Y'all On That Ledge" when he is able to hack into Hank Voight'due south telephone in less than a infinitesimal.

It is unknown where Mouse'southward nickname came from, although he does state in "What Puts You On That Ledge" that "information technology's a featherbrained nickname, merely I'm the kickoff to admit information technology". He is almost never referred to as Greg in chat, except past Jay in moments of high emotional tension.

Alongside Jay Halstead, Mouse served 2 tours in Transitional islamic state of afghanistan with the 75th Ranger Regiment, deployed to the notoriously dangerous Korengal Valley. It is revealed in his interview for the It task in "What Puts You On That Ledge" that he (and presumably Jay) received a medical discharge from the ground forces following an incident where the two were in the atomic number 82 of a convoy that was bombed. In addition to being clearly uncomfortable talking about the bombing, Mouse makes several references to a traumatic feel that he and Jay went through; while information technology is possible that this was the bombing, neither of them have discussed information technology in detail and little is known most what actually happened.

Mouse is implied to endure from PTSD from his time in the regular army. His behavior in Flavor 1 and two is particularly indicative of this, such as drifting off during a conversation, neglecting his personal appearance, the disability to look at anyone in the heart during a conversation and nervous twitches (restless fingers and stuttering). Jay states in "Made A Wrong Turn" that following their discharge, Mouse suffered from low and insomnia and abused drugs, besides characteristic symptoms of PTSD. These gradually lessen in Seasons 3 and 4, although he even so displays signs of information technology from fourth dimension to time.

Upon his return from armed forces service, Mouse was unable to hold downwards a task (likely due to his drug addiction and PTSD). He was charged with several counts of hacking and theft, including stealing a truck full of Blu-Ray players and hacking into a Department Of Defense communications satellite, although he did not serve time for either one.

Relationships

Jay Halstead

Jay Halstead was Mouse'southward all-time friend and office of his unit when he was deployed to Afghanistan. During Mouse's interview for the It job in "What Puts You lot On That Ledge", Platt mentions that Mouse recieved a medical discharge and asks him about the incident. Mouse tells her that he and Jay were in the lead of a convoy, and although he becomes very uncomfortable and does not continue, it is implied that their convoy was bombed and Mouse and Jay were both seriously injured, resulting in their medical discharge. They leaned heavily on each other through their difficulties readjusting to civilian life and PTSD; Will tells Erin that Mouse was the ane who looked subsequently his brother later their return from war and helped him with "what he was going through", and Jay later on reveals that Mouse would call him in the eye of the night when he couldn't sleep due to the psychological trauma.

Subsequently Mouse was unable to concord downward a job likely to his post-traumatic stress, he took Jay's offer of working every bit an informant and became his CI for a short menstruum of fourth dimension (likely due to his felony charge). The post-obit year, Jay helps him get the task at the Commune, maxim of Mouse, "I would trust him with my life. And I have, several times." He advocates for him when Voight is suspicious due to Mouse'due south criminal tape and PTSD symptoms and is extremely concerned when he is held hostage in "Actual Physical Violence" to the betoken where Mouse has to reassure him that he is all right, and Jay even tells Voight that he should be the ane to kill Mouse's captor.

In season 4, Mouse starts thinking virtually going back to the Army Rangers. In "Made A Wrong Plow", he tells Jay that he'southward been thinking about returning to the Rangers. Jay is immediately aroused and worried nigh him, asking if he remembers "what it did to you". He tells him that they will talk over it after, and Mouse brings information technology up once again in "A War Zone", bringing the argument to a caput. Jay also brings up Mouse'southward criminal record; Mouse then asks Voight for a favor to clean his record or he won't be allowed back, and Voight says he'll consider it. Mouse says he wants action, so Jay tells him to become a police force officer like him, but Mouse says he was "born to be a soldier" and would re-enlist fifty-fifty if information technology meant death. Jay, blinded by his business organisation, refuses to permit him and this angers Mouse, who so shouts back at Voight afterwards ignoring him in front of the whole squad, maxim that this is the merely thing he's ever asked for. Erin, afterward breaking upward an argument between Jay and Mouse, helps Jay to realize that returning to the army is a bad idea - for Jay, and he is projecting that onto Mouse. Jay comes around and has Platt clear his record, telling Mouse at the end of "A State of war Zone" that if he wants to re-enlist, he's "backside him 100 per centum".

In a deleted scene, he reveals that he considers Jay, as well as the residuum of the Chicago P.D., to exist his family, and he will always bear them with him.

Notes and Trivia

In "Made A Wrong Turn" he stated his age to exist 31, making his year of birth 1985.

Gallery

Appearances

Season ane
Stepping Stone	Incorrect Side of the Bars	Chin Check	Now Is Always Temporary	Thirty Balloons
Conventions	The Toll We Pay	Different Mistakes	A Material Witness	At Least It's Justice
Plow the Lite Off	8:30 PM	My Way	The Docks	A Beautiful Friendship

Season 2
Call It Macaroni	Get My Cigarettes	The Weigh Station	Chicken, Dynamite, Chainsaw	An Honest Woman
Prison Ball	They'll Accept to Go Through Me	Assignment of the Year	Called in Dead	Shouldn't Accept Been Solitary
We Don't Work Together Anymore	Disco Bob	A Trivial Devil Complex	Erin's Mom	What Practise You lot Exercise
What Puts You On That Ledge	Say Her Existent Name	Go Back to Even	The Iii Gs	The Number of Rats
There's My Daughter	Button The Pain Away	Built-in Into Bad News

Season three
Life is Fluid	Natural Born Storyteller	Actual Physical Violence	Debts of the By	Climbing Into Bed
You Never Know Who'southward Who	A Dead Kid, a Notebook and a Lot of Maybes	Forget My Proper name	Never Forget I Love You	Now I'yard God
Knocked The Family Right Out	Looking Out For Stateville	Hit Me	The Vocal of Gregory Williams Yates	A Night Owl
The Cases that Need to be Solved	Twoscore-Caliber Bread Nibble	Kasual with a K	If We Were Normal	In A Duffel Bag
Justice	She's Got United states	Commencement Digging

Season 4
The Silos	Fabricated a Wrong Plow	All Cylinders Firing	Big Friends, Large Enemies	A State of war Zone
Some Friend	300,000 Likes	A Shot Heard Effectually the Globe	Don't Coffin This Case	Don't Read the News
You Wish	Sanctuary	I Remember Her Now	Seven Indictments	Favor, Affection, Malice or Sick-Will
Emotional Proximity	Recollect the Devil	Little Bit of Lite	Final Infinitesimal Resistance	Grasping for Salvation
Fagin	Army of One	Fork in the Road