A wanna-be ninja is in jail facing eleven charges after an alleged robbery and chase in central Sioux Falls around 12:30 a.m. Tuesday morning. A man walking near 16th Street and Summit Avenue was approached by a man in a ninja costume claiming to be an undercover cop and threatened to arrest him. Police say the man in the costume put the victim in a choke hold and stole his backpack. Officers later caught up with 28-year-old Saeed Shakir a few blocks away. There he got into a scuffle with police, injuring an officer's knee. Shakir will be in court...