Meanwhile yesterday, in the District, where one of the slayings took place, Police Chief Charles H. Ramsey said that police dogs trained to sniff out gunpowder or explosive residue were "alerted" to a wall about 80 yards from the site where Pascal Charlot, 72, was shot to death Thursday night in Northwest.
The wall bears the sign for Northminster Presbyterian Church, at the nearby corner of Alaska Avenue and Kalmia Road NW.
Pastor Leonard Lassiter said that police told him Sunday that they would be "exhaustively" checking the five-foot wall, and possibly removing bricks to test them. The wall sits under a tree, in a fairly dark area with a clear line of sight to the well-lighted corner where Charlot was killed with a single shot about 9:20 p.m.