The mom is accused of timing the blaze for when her three daughters — ages 7, 10 and 12 — would all be asleep, removing the fire alarms, which were later found stuffed in a pillowcase in the backyard, officials told the outlet.

Mom removed seven smoke detectors and started house fire that killed her daughter, cops say - Seven smoke detectors were removed from the house before the blaze started, according to police

The mother poured lighter fluid both upstairs and downstairs in the home, according to authorities, who called the case “unimaginably horrific.”