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AURORA, Colo. — A man who did not sustain injuries but was in the Aurora movie theater when a gunman opened fire last week has hired a lawyer with the intent to sue multiple parties, according to a report.

TMZ is reporting that Torrence Brown, Jr. was in the Aurora movie theater when a gunman shot 70 and killed 12. A.J. Boik was one 12 dead, and was one of Brown’s close friends. Though Brown did not sustain any physical injuries, TMZ reports that he claims to now be suffering from “extreme trauma.”

Donald Karpel will represent Brown, who plans to target three defendants in his lawsuit.

The first defendant named was the Century 16 theater in Aurora, which Karpel claims “was negligent” in not alarming or guarding its emergency door in the front of the theater. It has been reported that suspected gunman James E. Holmes entered through that door.

Holmes’ doctors were also named. Karpel said it appears Holmes was on several medications prescribed by one or more doctors at the time of the shooting and was not properly monitored after these medications were prescribed.

The final party is Warner Bros. Karpel said the film “The Dark Knight Rises” was violent and Holmes was acting out some of the action.

“Somebody has to be responsible for the rampant violence that is shown today,” Karpel told TMZ.