Task: Question Generation
Input (English): On the 10th anniversary of his son's kidnapping, a small town cop finds a connection to Ronald Perkins, a mysterious loner he just picked up for a traffic violation.Investigating Perkins further, he finds that he is behind 14 kidnappings from a decade ago, the children now released and drug-enhanced monsters as a means of revenge upon the townspeople.Ultimately, the town is placed under a state of emergency, and the officer, with his family, make their stand-off in the locked-down local prison. When the son, Kyle, leads the barbaric charge to the prison, the family must do what they can to redeem the young man, and bring back his humanity, or else become the next victims of Perkins' 14.Directed by award-winning filmmaker Craig Singer ("Dark Ride," "Dead Dogs Lie," "A Good Night to Die"), with a screenplay by Lane Shadgett ("Luna Park," "All Lost Souls"), "Perkins' 14" was developed online at Massify.com. Writers were invited to upload story pitches, and actors submitted audition videos. The site's community members then voted on their favorite story and on which actors they thought deserved to be cast in the four main roles.The winning idea, submitted by Jeremy Donaldson, follows Robert Perkins, who at age six, becomes mentally unstable when his parents are brutally murdered inside their home. His psychosis has him living the rest of his life convinced that the killers will return in the future to kill him as well. At age 34, Perkins kidnaps 14 people from his hometown of Stone Cove and brainwashes them, creating a unified team of psycho killers. [D-Man2010]
Output (English): How old was Robert when he becomes mentally unstable?