STEPHENVILLE, Texas — A Texas jury has rejected the insanity defense of a former Marine in the deaths of famed “American Sniper” author Chris Kyle and another man.

After a two-week trial in which jurors heard testimony about defendant Eddie Ray Routh’s erratic behavior, including statements about anarchy, the apocalypse and pig-human hybrids, they convicted Routh Tuesday night in the deaths of Kyle and Chad Littlefield at a Texas shooting range two years ago.

Routh showed no reaction as a judge sentenced him to life in prison without parole, an automatic sentence since prosecutors didn’t seek the death penalty in the capital murder case. As one of his victim’s siblings called him an “American disgrace” shortly after, Routh looked back at the man intensely but didn’t react otherwise.

The verdict capped an emotional trial in which prosecutors painted the 27-year-old as a troubled drug user who knew right from wrong, despite any mental illnesses. Defense attorneys said he suffered from schizophrenia and was suffering a psychotic episode at the time of the shootings. While trial testimony and evidence often included Routh making odd statements and referring to insanity, he also confessed several times, apologized for the crimes and tried to evade police after the crime.