Dad fatally shot his wife and 6 kids before setting their Michigan home on fire and killing himself, authorities say

The bodies were found Friday inside the Grand Haven residence, police said, and the children were 5 to 15 years old.

A man fatally shot his wife and their six children before he set the Michigan home they shared ablaze and turned the gun on himself, authorities said Monday.

Kristopher Karolkiewicz, 47, killed his wife, Amanda, 39, and their children, ages 5 to 15, Ottawa County Sheriff’s Capt. Jake Sparks said at a news conference.

They were found dead after first responders arrived at the home in Grand Haven, on the eastern shore of Lake Michigan, late Friday morning, Sparks said. Autopsies showed all had been shot, he said.

“The investigation at this point shows that this is a murder-suicide, with the fire being started after the murders,” Sparks said.

Four of the children were the couple’s biological kids, and two 11-year-old girls had been adopted, Sparks said, adding that the children’s identities would not be released at this time.