The Arcadia Police Department is investigating a fire that killed three children inside a home Saturday.
Police have arrested Marian Williams in this case, charging her with three counts of first-degree murder, two counts of attempted second-degree murder, and arson.
Investigators say Williams set fire to a home on South Lee Avenue, killing Marcus Clark, 10, Kiani Clark, 8, and Kemaren Clark, 4.
Two adults, including the kids's grandfather were also inside the home at the time. The grandfather is in serious condition, while the other person got out of the home without injuries.