Male, 47, suspected of massacring his wife and 6 children before taking his own life, officials say

A Michigan husband and father is suspected of fatally shooting his wife and six children before taking his own life last week, authorities said.

Ottawa County Sheriff’s Capt. Jake Sparks said investigators believe that 47-year-old Kristopher Karolkiewicz killed his wife, 39-year-old Amanda Karolkiewicz, and their six children — four boys, ages 15, 12, 11, and 5, and two 11-year-old girls — before killing himself.

‘This is an unspeakable tragedy that we may never completely understand.’

“The manner of death for Amanda and the six children was ruled homicide. The manner of death for Kristopher has been ruled suicide,” Sparks stated.

Deputies assisted firefighters at 11:42 a.m. Friday responding to a call about a house fire in the Riverwood neighborhood of Grand Haven, which is on the coast of Lake Michigan and a little over 30 minutes west of Grand Rapids.

Firefighters entered the two-story residence and discovered eight people dead in various rooms. Investigators later determined that all of the victims had suffered gunshot wounds before the blaze was set.

Autopsies confirmed the identities of the deceased as Kristopher and Amanda Karolkiewicz and their six children, four of whom were the couple’s biological boys; their two girls had been adopted. The children’s names have not been released.

“This is an unspeakable tragedy that we may never completely understand … but we’ll do our best to find the answers and to honor the memory of those victims,” Sparks pledged.

Investigators believe Kristopher used a handgun in the killings; no suicide note has been found so far.

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While the official cause of the fire remains under investigation, preliminary evidence indicates it was intentionally set after the killings, Sparks shared. Investigators found multiple areas where the fire appeared to have been ignited, including the home’s first floor and basement.

“I can tell you that no suspects remain at large in this incident at this time. The investigation at this point shows that this was a murder-suicide with the fire being started after the murders,” Sparks said.

The family’s pets, including several dogs and at least one cat, also died in the fire.

Sparks noted that the violence may have commenced the night before and continued into the early morning hours, with neighbors having reported smelling smoke early in the day, though a precise timeline is still being established.

The motive remains unknown.

The American Heart Association confirmed that “Kristopher Karolkiewicz was an employee … from September of 2023 until earlier this month, July 2026, when his employment ended,” WWMT-TV reported.

Amanda worked as a substitute teacher at Grand Haven Area Public Schools, WDIV-TV reported. District Superintendent Kristin Perkowski called the tragedy a “devastating incident.”

“It is with deep sadness that we acknowledge reports of a devastating incident in Grand Haven Township earlier today involving the loss of multiple lives, including several school-aged children,” she wrote, according to WZZM-TV.

Amanda also was a children’s author, and a biography from one of her books notes that her passions were “special needs and trauma-informed advocacy, mindfulness, reading, dining out, traveling, and exploring the Lake Michigan shoreline.”

Steve and Becky Lawwill, the parents of Amanda and the grandparents of the six children, issued a statement Monday to WWMT saying, “Our daughter Mandy was a kind and devoted soul who loved her family and her students.”

“We treasured every moment we had with her and her six children, and words cannot adequately express our devastation,” the Lawwills added. “We pray for God’s peace and comfort as we grieve their deaths and honor their lives.”

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