Police in Florida said a man allegedly shot his wife and parents-in-law after uncovering a sex tape of his spouse with his best friend.

William Brian Stillwell, 39, was arrested following a New Year’s Day triple-shooting at a Melbourne home that sent his 5-year-old twins running for help, news station WFTV reported.

Stillwell allegedly showed up at a backyard gathering where his children were present and opened fire using a 9mm semi-automatic pistol, Florida Today reported.

In a call to 911, Stillwell allegedly could be overheard in the background accusing his wife of cheating while his son and daughter begged him to stop shooting, according to police.

“No, daddy. No. I don’t want anyone to die,” a child reportedly said.

The children escaped unharmed and the three injured adults were rushed to the hospital in stable condition. The suspect’s wife and mother-in-law were set Thursday to undergo surgery while the father-in-law has been released, WFTV reported.

Stillwell surrendered to police and was booked on charges for attempted murder and child abuse.

He allegedly told detectives that he saw a video on his wife’s phone of her having sex with his best friend before he gunned down her family.

Authorities said the wife recently moved in with her parents because she was experiencing marital trouble.