Kristopher Karolkiewicz Allegedly Killed Family In Murder-Suicide: What to Know About The CaseKristopher Karolkiewicz Allegedly Killed Family In Murder-Suicide: What to Know About The CaseAmanda “Mandy” Karolkiewicz allegedly opened up about her husband Kristopher Karolkiewicz’s infidelity in a series of posts online before he allegedly murdered her and their six children then died by suicide. Michigan father Kristopher Karolkiewicz’s employment ended shortly before he is suspected of killing his wife and six children, then setting the house on fire. What Happened to Amanda Karolkiewicz, Kristopher Karolkiewicz and Their Children? Amanda "Mandy" and Kristopher Karolkiewicz Photo: TikTokThe family’s pets, including several dogs and at least one cat, also died due to the fire or smoke inhalation. Amanda Karolkiewicz Allegedly Complained of Marriage Infidelity in Online PostsTwo years before her death, Mandy allegedly discussed problems in her marriage, including her husband’s infidelity in a series of posts on Reddit linked to an account independently verified by the Holland Sentinel to belong to her.