You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
In this task, you will be shown an extract from a movie plot and a question. You need to provide the correct answer for it. Short answers containing words that are present in the passage are preferred.

Twenty-year-old Will Hunting of South Boston is a self-taught, genius-level intellect, though he works as a janitor at the Massachusetts Institute of Technology and spends his free time drinking with his friends, Chuckie (Ben Affleck), Billy (Cole Hauser) and Morgan (Casey Affleck). When Professor Gerald Lambeau (Stellan Skarsgard) posts a difficult mathematics problem as a challenge for his graduate students, Will solves the problem anonymously, stunning both the graduate students and Lambeau himself. As a challenge to the unknown genius, Lambeau posts an even more difficult problem. Lambeau chances upon Will solving the problem but Will flees the scene. That night at a bar, Will meets Skylar (Minnie Driver), a British student about to graduate from Harvard, who plans on attending medical school at Stanford and gives Will her phone number before leaving., Question: How old is Will Hunting in the movie ?
Solution: Answer: Twenty years
Why? This is a good example which results in a factoid answer.

New input: Moderately successful criminal defense attorney Mickey Haller (Matthew McConaughey) operates around Los Angeles County out of a Lincoln Town Car driven by a former client working off his legal fees (hence the title). Haller has spent most of his career defending garden-variety criminals, until he lands the case of his career: Louis Roulet (Ryan Phillippe), a Beverly Hills playboy and son of real estate mogul Mary Windsor (Frances Fisher), who is accused of the brutal beating of a prostitute. But the seemingly straightforward case suddenly develops into a deadly game of survival for Haller.Roulet is seemingly innocent and was at the wrong place at the wrong time. Haller and his investigator Frank Levin (William H. Macy) analyze the pictures and evidence, notably the injuries the victim sustained. It bears a similarity to a past case of Haller's that landed a previous client, Jesus Martinez (Michael Pena), in jail for murdering a woman, despite always proclaiming his innocence.Haller spends time with his ex-wife, prosecutor Maggie McPherson (Marisa Tomei), who has never appreciated Haller's efforts on behalf of guilty criminals when he ought to be trying to put them behind bars. All his clients claim to be innocent, but Haller begins to wonder if he should have tried harder on behalf of Martinez instead of convincing him to plead guilty in exchange for avoiding the death penalty.In prison, Martinez becomes agitated when Haller shows him Roulet's picture. Haller begins to suspect that Roulet could be the real killer in the Martinez case, but bound by attorney-client confidentiality rules, he cannot tell the police what he has learned.Levin is mysteriously killed after leaving a voicemail message claiming that he has found Martinez's ticket out of jail. Haller is suspected of killing Levin because a collector's gun missing from his house was used to kill Levin, a gun that Haller believes was taken by Roulet after the latter broke into Haller's home.Obliged to do his best for his client, guilty or not, Haller ruthlessly cross-examines the beaten prostitute and discredits her in the jury's eyes. After a prison informant lies to the prosecution on the witness stand, the defense moves to dismiss all charges in the current case. Roulet is set free, delighting his mother, but the police then arrest Roulet immediately for the previous murder case, based upon testimony Haller coaxed out of the witness.Haller acquires a gun from his driver, Earl (Laurence Mason), as a precaution against any retribution he may face. Roulet is released due to lack of evidence and sets out immediately to kill Haller's wife and child, but Haller finds out in time to get them out of the house. He is waiting as Roulet arrives and draws his gun. Roulet mockingly tells Haller he won't be able to guard his family this way every day. But a group of bikers that Haller has previously represented brutally assaults Roulet.Upon arriving home, Haller discovers Roulet's mother inside. She shoots him with his own gun, the same one that killed Frank, confessing that she committed that murder. Haller, wounded, kills her with his new gun.After being discharged from the hospital, Haller discovers that Frank had found a parking ticket issued to Roulet near the house of the murdered victim, which constitutes strong evidence against Roulet in his pending murder trial. Martinez will be released, and Haller rides off to his next case., Question: Who is accused of the brutal beating of a prostitute?
Solution:
Answer: Louis Roulet