WARREN COUNTY • Two people were killed and two, including an 7-year-old boy, were in critical condition after being stabbed in a domestic dispute Friday night by a man looking for his estranged wife, police say.

Shawn M. Kavanagh, 23, of the 300 block of South Main Street in Bellflower, Mo., was charged Saturday with two counts of first-degree murder, domestic assault, assault, armed criminal action and burglary. He was being held without bail.

Just before 8 p.m. Friday, Kavanagh called 911 and told police that he had stabbed his wife and killed several other people at a home in the 26000 block of Humber Road. The residence is off Highway Y, south of Jonesburg, Mo.

Kavanagh was covered in blood when Warren County sheriff’s deputies arrived, Sheriff Kevin Harrison said Saturday. Kavanagh told deputies that he had killed the people inside the residence, according to Harrison.

A woman, 22, from Montgomery City and a woman, 29, from Jonesburg were found dead from multiple stab wounds inside the residence. An 18-month-old girl was found unharmed inside the home.