North Carolina police say a real estate developer known as an active member of his church shot and killed his wife and two teen children and then committed suicide in their Fayetteville home.

Authorities did not hint at a motive into the slayings by William Maxwell in an upscale neighborhood of the city Monday night. CBS News affiliate WRAL-TV in Raleigh reported Tuesday that police have stopped combing over the house for the day and didn't provide an explanation for the deaths.

Police said Tuesday that 47-year-old Maxwell killed his wife, Kathryn, and their children, 17-year-old Connor and 15-year-old Cameron, before turning a gun on himself.

Friends and neighbors say the Maxwells were a friendly family who kept a meticulous yard and were active in their church and their children's religious high school.

"They were just wonderful people, active in their church," said neighbor Kay Edwards, who has lived next door since 1994, when she moved