The bodies of a Prince George's County couple were discovered yesterday afternoon in their home in Colmar Manor.

A group of two or three real estate agents found the couple, Dwight Wesley Bennett, 66, and his wife, Marcy Velma Bennett, 60, when they entered their home shortly before 1 p.m., according to Prince George's County police.

The Bennetts had sold the house last week and were preparing to move to West Virginia, according to neighbors and police.

Police said the couple had died sometime during the weekend. Neighbors said they had not seen the Bennetts since Saturday.

Marcy Bennett has been struck on the back of the head several times, apparently with a hammer found under her body, and stabbed in the back and chest with a kitchen knife, according to police. Her body was found in the kitchen.

Dwight Bennett, a construction foreman who retired last year, was found in the bathroom, his arms slashed with a knife and razor that were found in the room, police said.

Investigators said they have tentatively concluded that Dwight Bennett killed his wife during an argument and then took his own life, a police spokesman said last night.

But those who knew the Bennetts refused to accept that account.

"They were very close," said David Fink, who lives with his family across the street from the Bennetts' home. "I can't believe that happened. It doesn't make any sense."

"They were such happy people," agreed 15-year-old Judy Parrott, who grew up next door to the Bennetts. "No way would they do that."