Former Silverthorne photographer Dale Bruner was found guilty of second-degree murder Friday evening in the slaying of his wife, Stephanie Roller Bruner.Dale Bruner reported his wife missing just before Thanksgiving in 2010, saying she had gone for a walk and never returned.Roller Bruner's body was discovered in the Blue River three days after Bruner reported her missing from their home in Silverthorne. She'd died of a combination of strangulation, blunt force trauma, hypothermia and drowning, according to an autopsy.Bruner was indicted by a county grand jury seven months later. He was charged with second-degree murder, first-degree assault and tampering with evidence. The Bruner's 10-year-old daughter testified that she remembered hearing her parents arguing the night her mother was last seen alive. Prosecutors said an affair Roller Bruner had and the couple's financial troubles culminated in a deadly fight.During the trial, two of Bruner's ex-girlfriends testified claiming he had put his hands on their throats and choked them during heated arguments when they were dating.Stephanie Bruner had filed for divorce three weeks before her death.