Police are seeking a silver car in connection with a fatal drive-by shooting that left a 29-year-old man dead Sunday in the Humboldt Park neighborhood. The man, 29, was outside walking in the 2700 block of West Thomas Street around 8:50 a.m. Sunday when he was shot multiple times by someone in a silver vehicle, Chicago police said. The unidentified 29-year-old was taken to Mount Sinai Hospital where he later died, police said. Area 3 detectives were investigating.