Authorities in Idaho have revealed an alleged quadruple murderer opened fire on his victims after one of them exposed himself to the suspect’s daughters. Majorjon Kaylor, 31, has been charged with the killings of Kenneth Guardipee, 65, his daughter Kenna 41, and her sons 18-year-old Devin Smith and 16-year-old Aiken Smith on Sunday. The victims lived below the suspect and his family in a duplex at 515 W Brown Ave in Kellogg. The carnage last week shocked the community of Kellogg, with court documents shedding some light on the circumstances surrounding the shooting. According to an affidavit unsealed on Tuesday, Mr Kaylor reportedly told law enforcement that he “snapped” and “lost it” during an argument with his neighbours. Mr Kaylor and his wife, Kaylie Kaylor, told police that they were upset because several days earlier, Devin had allegedly masturbated in front of his bedroom window in full view of the Kaylors’ young daughters. The families shared a duplex, and the girls were playing outside in the yard when the exposure allegedly occurred. The incident was reported to the police, and the report was forwarded to the county prosecutor so a criminal charge of indecent exposure could be filed. But on Sunday evening, the Kaylors had an argument with the Guardipees over how the allegations were being handled. Police arrived at the house after reports of a shooting at around 7.20pm on Sunday. Mr Guardipee, his daughter and youngest grandson were found shot in the temple at close range, while Devin was shot multiple times in the head. Kaylor is being held without bond and has not yet entered a plea. A preliminary hearing has been set for 3 July. This is a developing story ... check again for updates.