A gunman killed one and injured five, police said, in a shooting Friday at the Orlando offices of an engineering firm where the suspect was let go more than two years ago.

The shooting set off an intense manhunt Friday afternoon until the alleged gunman, Jason Rodriguez, 40, was arrested without incident at his mother’s Florida apartment building, police said.

Rodriguez’s former mother-in-law told Fox News over the phone that Rodriguez was on medication that affected his mind. She said he acted paranoid, thinking people were out to get him.

“He would imagine things sometimes,” his former mother-in-law said. “From what I understand they had him in a mental institution six months ago.”

Fox News: http://www.foxnews.com/story/0,2933,572605,00.html