Mentally ill son kills dad after mom begged that he not be sent home

ViewElizabeth Frensley will never forget consoling her son after he learned he killed his father.

"He cried like for months... they were best friends, and he just couldn't believe it. I mean, he was in shock," Frensley said.

Nearly two years ago, firefighters rushed to the Brentwood, Tennessee, home of James Hassey. He...