The police canvassed the area, but found no one willing to testify, Mr. Hawkins said.

But on the bridge over Moneybogue Bay, the police set up a roadblock and canvassed for witnesses to the disaster.

Back on 213th Street, as the police canvassed the area, residents expressed the hope that the publicity surrounding the shooting would provide at least temporary relief.

The police canvassed the neighborhood Friday in search of information concerning the incident.

The police canvassed the area, the authorities said, and at some point placed it under surveillance.

The police canvassed the entire complex (871 units) and found nothing.

The suspects were arrested after the police canvassed the area and a knife was found on the ground nearby, Sergeant Nikas said.

Within hours, the investigator said, the police had canvassed the grounds of the housing project and found a 9-millimeter handgun in a patch of grass.

The police also canvassed construction sites nearby, in a search for clues about where the brick may have come from.

Last night, the police were still canvassing the area, showing residents pictures of the victims.