Jeffery Trevino's defense had a tough challenge in overcoming the large amount of forensic and video surveillance evidence stacked against him, as well as a motive that tapped into primal human instincts, said local attorneys who reflected on the recent trial.
Trevino, 39, was convicted Wednesday of second-degree murder without intent, meaning jurors believed that he killed his wife, Kira Steger, during an assault but that he didn't intend to kill her. The jury of four women and eight men acquitted him of second-degree murder with intent after 17 hours of deliberation and eight days of testimony that revealed his wife was cheating on him.
"I think a lot of people can understand how that happened," defense attorney J. Anthony Torres said of murder without intent. "Everything leading up to her death suggested he didn't have any plans to hurt her that night. They went to dinner. He was hoping they could fix their marriage, and all of a sudden, in a very short period of time, she's gone, which suggests to most reasonable people … there might have been a lot of passion involved in what happened."
Trevino and Steger, 30, had a date night at the Mall of America on Feb. 21 to talk about the future of their marriage, which was on the verge of divorce. The two had dinner at Crave, went bowling and watched a movie upon returning to their home in the 500 block of Iowa Avenue E. in St. Paul.
Throughout the evening, Steger texted a co-worker she was having an affair with. Assistant Ramsey County Attorneys Richard Dusterhoft and Andrew Johnson told jurors that Trevino killed Steger within two hours of the last text she sent the other man at 11:44 p.m. Trevino reported Steger missing to police on Feb. 24 and was charged in her death a few days later. A barge mechanic found her body on May 8 in the Mississippi River.
Trevino's attorney, John Conard, raised the idea that Steger's marijuana use could have factored into her death and that the forensic evidence was misleading. He also implied that Steger's grandfather could have planted a bloody pillow prosecutors believe was used to smother her.
Conard had a difficult case, but implicating the grandfather probably just "turned off" the jury, said Joseph Daly, emeritus professor at the Hamline University School of Law.
"That was a big mistake by the defense," said Daly, a former prosecutor and defense attorney. "One of the things you do is you pick the most reasonable theory in your case and you press forward on that theory."