Cheyenne Singer Robin Munis Murdered Onstage

Reportedly, she was murdered "sniper-style" by her estranged husband, David Munis, 36, who took his own life nearly four days later.

Police reports say Robin Munis was killed when David Munis used a high-powered rifle to fire a single shot through one of the restaurant's rear patio windows, striking her in the head.

David Munis had received sniper training in the military and was attached to a Wyoming Army National Guard unit in Guernsey.

Robin Munis was described as "a consummate professional musician, a dedicated mother, and someone who helped people who have disabilities."

"She had a passion for the gift of music," said Mark "Ty" Warner, who leads the band Ty and the Twisters. Munis was performing with the band at the time of the shooting.

Area musicians are planning a memorial benefit to help the children of Robin Munis.