Police have arrested a 25-year-old autorickshaw driver for allegedly killing a man and raping his girlfriend near a village here last week. The interrogation of Siddharth Naravade (25) revealed he was also involved in an attack on a couple in the same area last year, a police official said. Addressing a news conference at the Thane District Rural Police HQ, Superintendent of Police Mahesh Patil said with the arrest of Naravade yesterday, they have cracked the March 5 murder and rape case and also recovered the weapon used in the crime.