Law enforcement authorities are looking into the possible motive in the ambush-slay Monday of 26-year-old Customs broker Raymond Aniceto, a resident of Parañaque City, but gunned down in 4th Avenue corner D. Aquino Street in Caloocan City by a riding-in-tandemn gunmen who, according to witnesses, had chased the victim’s vehicle until it stopped after crashing against a wall.