Chico police are investigating a stabbing tonight that sent a 20-year-old man to the hospital Tuesday night. Just before 9 p.m. the victim, walked into a business on the 200 block of Main Street bleeding and asking for help. Paramedics arrived and found he had been stabbed in the lower back apparently the result of some sort of altercation on City Plaza. The victim's wound was not life-threatening. Officers say he was providing little information. So far there is no suspect and no arrest.