Eddie Ray Routh has been found guilty of the murder of US Navy Seal Chris Kyle, who wrote American Sniper, and a second man by a Texas jury.
The judge sentenced him to life in prison without parole - prosecutors had not sought the death penalty.
Defence lawyers for Routh had claimed the 27-year-old was psychotic at the time of the shootings two years ago.
Alastair Leithead reports.
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