Man shot and killed by police in Madison, Wisconsin, sparking protests

A police officer in Madison, Wisconsin, shot and killed a man who had injured him with a knife while resisting arrest, the city's police chief said Wednesday.Police as of Thursday have not identified the man who was killed, saying only that he was in his 30s, but Madison Mayor Satya Rhodes-Conway and Madison District 6 Alder Davey Mayer identified him as Corey Ruiz. The Madison Police Department said in a news release that its officers were responding to calls that someone was stealing bicycles and checking vehicle doors in the city's Marquette neighborhood. The man fled from officers on a bicycle, traveling through backyards to get away, the department said, before officers encountered him again at an intersection.At the intersection, the man "either fell or was pulled off the bicycle," the department said, noting that how he came off the bicycle "is still being determined."