An attorney for the family of a gunman who was among three killed in a shootout near Texas A&M University said Tuesday that the gunman had been suffering from "mental issues."

Attorney W. Tyler Moore declined to elaborate on Tuesday what kind of mental problems 35-year-old Thomas Alton Caffall III had.

"He wasn't the same kid that he used to be, let's just say that," Moore said. "He was sweet, very bright, good sense of humor, just a good kid, a sweet kid. I've known him since he was 4 years old."