Police said the three suspects entered the house at 4983 W. Moberly Ave., near Warm Springs Road and Decatur Boulevard, about 10 p.m. demanding drugs and money from the people inside.

One of them was armed with a knife and another was armed with a handgun, police said.

A witness told police that the three men believed that drugs were being sold out of the house. After the suspects took an unknown amount of money, one of them shot the 31-year-old man in the head and fled.

No vehicle was seen.

Lt. Lew Roberts said police didn't know whether drugs were taken from the home by the suspects. Investigators did find marijuana residue in the house, he said.

"They were actively selling drugs out of the house," Roberts said.

The victim's name was not released.

Neighbors said visitors in nice cars frequented the home, but never stayed long.

Two cars were parked in the driveway Friday but any trace of police presence -- beyond the charcoal-colored smears of fingerprint dust on the front door -- was absent.

The only activity on the street came from construction workers building houses in the Richmond American Homes development across the street. Immaculate model homes sat only a few houses away.

Police still were searching for the suspects Friday night. They were described as thin men in their early 20s, all wearing black clothing. One of them was wearing a checkerboard "L.A." baseball hat, police said.

Anybody with information is encouraged to call Crime Stoppers at 385-5555.

Review-Journal writers Brian Haynes and Maggie Lillis contributed to this report. Contact reporter Lawrence Mower at lmower @reviewjournal.com or 702-383-0440.