Robert Hall declined to testify on his own behalf Tuesday morning — a decision that ended the defense in his first-degree murder trial for the shooting death of Emmett Corrigan in March 2011.

Lawyers on both sides of the case are now set to give their closing arguments today to a jury of 10 women and 5 men.

When that is done, three of the-jurors will be selected as alternates and the remaining 12 remaining will have to decide if Hall is guilty of first-degree murder.

The 42-year-old Hall is accused of shooting and killing Corrigan, his wife’s boss, in a Meridian parking lot on March 11, 2011, because Hall suspected they were having an affair — a suspicion that turned out to be true.

Hall told Meridian police in 2011 he wasn’t sure how Corrigan was shot and said his gun fell during a struggle with Corrigan, an attorney who hired his wife Kandi in the fall of 2010.

Defense attorney Rob Chastain told the jury Monday that prosecutors have not been able to prove over the past two weeks of testimony that Hall planned to kill the 30-year-old Corrigan when he confronted him about the affair.

Jurors spent most of Monday hearing experts hired by the defense discuss bullet trajectories, gunshot residue and other forensic evidence. They claim it supports the theory that the gun fell from Hall’s pocket and fired during a confrontation.

Police have said a bullet that struck Hall’s head came from a self-inflicted shot, but defense experts said it likely was caused by one of the two bullets that struck Corrigan.

On Tuesday, prosecutors called Ada County pathologist Glen Groben as a rebuttal witness after the defense rested their case. Groben, who did the autopsy on Corrigan last spring, dismissed the ricochet claim, saying forensic analysis showed the hollow point bullets in Hall’s gun and the angle at which they were fired wouldn’t allow for that to happen.

Earlier Tuesday, Robert Hall’s 18-year-old daughter Hannah testified briefly for her dad.

Hannah Hall told the jury that her parents’ relationship had some problems and that she and her sister were told their parents might seek a divorce.

Hannah Hall said her father appeared sad, not angry, the night of March 11, 2011, hours before he is accused of shooting Corrigan.

Hannah Hall, who is currently living with Kandi Hall, also told the jury her mom was acting “very distant” in the time before the shooting and that she would have moved in with her dad if her parents got a divorce.

Hall’s attorneys also showed the jury some text messages retrieved from Emmett Corrigan’s phone the night of the shooting, where he tells one of Kandi Hall’s family members that “I’m about ready to drive over and beat his (Hall’s) ass,” and “I won’t let his sorry ass lay a finger on her again.”

Closing arguments are expected to last less than two hours, so the jury will likely begin deliberations by the afternoon.

Patrick Orr: 377-6219, Twitter: @IDS_Orr