BUFFALO, N.Y. — The prosecutor overseeing the sexual assault investigation of Chicago Blackhawks star Patrick Kane says the accuser’s mother lied about finding an evidence bag in her doorway.Erie County District Attorney Frank Sedita said during a news conference today he’s not sure yet how the two-day sideshow of how evidence was handled affects the main case. Sedita said all the evidence, including the rape kit used to examine the accuser, was handled properly and is still in custody of authorities …