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Online posts shed light on Michigan family killed in apparent murder-suicide

Verified online posts believed to be by Amanda Karolkiewicz detail infidelity, counseling and efforts to hold the family together before authorities say her husband killed their six children, her and himself in an apparent murder-suicide.

Published Jul 29, 2026, 10:49 AM EDT | LehighValleyLive

GRAND HAVEN TOWNSHIP, Mich. — Online posts believed to have been written by a West Michigan mother whose family died in an apparent murder-suicide offer a deeply personal account of a marriage marked by infidelity, counseling and efforts to keep her family together, according to reporting by local media and investigators, USA TODAY said. Authorities say Amanda “Mandy” Karolkiewicz, her husband, Kristopher Karolkiewicz, and the couple’s six children were found dead Friday inside their Grand Haven Township home after a fire. Officials said the deaths have been ruled a murder-suicide, according to The Detroit News.