Relatives and neighbors sat stunned on parked squad cars Friday outside the house where four children, age 2 to 5, were stabbed to death while huddled in a bedroom.

Deputies and Mississippi Highway Patrol officers used tracking dogs and a helicopter to search woods north of Eupora, about 65 miles away, for Henry Curtis Jackson Jr., the son of Martha Jackson.Curtis Jackson, 26, crashed through a bedroom door at his mother's home Thursday night and stabbed to death four of his young nieces and nephews, police said.

Two other young children and his sister, 23-year-old Regina Fay Jackson, were wounded before he fled in a car his mother had lent him, authorities said.

Leflore County Coroner James Hankins said he found the victims on the floor and "all had been stabbed in the neck with a sharp instrument."

"He just clicked and started stabbing," said Angelo Jeems, 24, a cousin of the Jackson family who lives across the street from the red-brick house. She said Curtis Jackson lived with his grandmother in West Point.

Webster County Sheriff Bill Middleton said Curtis Jackson was wanted on four counts of murder and three counts of attempted murder.

"We're still out there searching and we're getting a lot of help," Middleton said Friday.

Neighbors said the stabbings occurred after Jackson's sister refused to provide her brother with money for drugs.