Several police cars went flying past this evening shortly after 6:30 and stopped by Lawrence Ct./Society Hill Synagogue (400 block of spruce). I counted police 7 cars in total- as I approached the police were climbing under cars and obviously searching for something. I asked one of the officers further down the block and he said there was a knife attack and the attacker tossed their weapon under one of the cars. Anyone else hear about this?