Prosecution expert says 'American Sniper' suspect not insane

STEPHENVILLE, Texas (AP) — The ex-Marine charged with shooting "American Sniper" author Chris Kyle and another man was not legally insane, a prosecution expert said, suggesting the man may have gotten some of his ideas from the television show "Seinfeld."

Prosecutors called rebuttal witnesses today in the trial of Eddie Ray Routh, who is charged with killing Kyle and his friend Chad Littlefield. Routh's attorneys, who are pursuing an insanity defense, rested their case Thursday.

Dr. Randall Price, a forensic psychologist, testified that Routh had a paranoid disorder made worse by his use of alcohol and marijuana.

"In my opinion, he did know what he was doing was wrong, and he did it anyway," Price said.

A defense witness, Dr. Mitchell H. Dunn, testified Thursday that Routh had schizophrenia and showed signs of the illness for as long as two years before the February 2013 shootings. Dunn said Routh described seeing neighbors and friends as turning into pig-human hybrids.

Price argued Routh may have gotten the idea from "Seinfeld" or the TV show "Boss Hog." In a "Seinfeld" episode, one character, Kramer, believes he has discovered a "pig-man."