A Colorado man accused of using an AK-47 to kill a woman and wound her boyfriend as they walked their dog has been convicted of first-degree murder and attempted murder. 

Jurors found Michael Close, 38, got into an argument with Isabella Thallas, 21, and Darian Simon as they encouraged their dog to relieve itself outside Close’s Denver Ball park-area apartment June 10, 2020.

During the trial, prosecutors told jurors Close yelled out the window at the couple as they urged the dog to “go potty” before grabbing the gun, he took from a friend – a Denver police sergeant.

Prosecutors said he fired 24 times. Thallas was hit in the back and died instantly; Simon, 29, was shot twice. He ran from the scene until he collapsed not far away.

Close had pleaded not guilty by reason of insanity, Denver District Attorney’s Office spokesperson Carolyn A. Tyler told USA TODAY Friday.

Train wreck:Colo. police release video showing detained woman struck by train while cuffed in cop car

Indicted in Kansas City:Claims a cop was raping women swirled for decades. His arrest brought little relief.

Close’s public defender, Sonja Prins, said Close had suffered a mental break, saying an abusive childhood, a string of job losses, a breakup and the COVID-19 pandemic contributed to his poor mental health at the time of the shooting.

The jury, which deliberated for less than a day, also convicted Close of assault, Tyler said. 

As the verdict was read, Close and members of Thallas’ family cried, The Denver Post reported. 

Isabella Thallas’ mother Anna Thallas, the outlet reported, said she felt numb.

“We’ve been waiting 2½ years for this day and what happened in there just went by … almost as fast as my daughter was slaughtered,” she said. “And our lives were changed forever.”