On Wednesday, Best told reporters that officers saw a van following a group of protesters around 4:30 p.m. Saturday, before it stopped outside the East Precinct. At about the same time, she said, explosions started going off outside the precinct. Best said a witness later told police they had seen baseball bats and explosives inside the same van earlier in the day. Police later impounded the van and, after obtaining a search warrant, discovered firework pyrotechnics, smoke bombs, stun guns, bear and pepper spray, makeshift spike strips and gas masks, Best said… Seattle Police Sgt. James Lee, who works with...