Officials say home explosion was murder-suicide

Officials say home explosion was murder-suicide

Investigators said at least one of three people who died in a house fire and explosion in Racine County had been fatally shot.

Sheriff’s officials said Craig Lambert, 41, killed his girlfriend, Kimberly Howe, 43, and her son, Nicholas Chaulkin, 17, before he took his own life at their house in the Town of Burlington last month.

Authorities determined the teen had been shot in the head. Injuries to Howe and Lambert were so severe that a cause of death could not be determined. Investigators found a gas line had been removed in the basement, allowing the house to fill with gas and explode when ignited.

Officials said Lambert and Howe had recently been in a domestic dispute and Howe had planned to ask Lambert to leave.