articleThe Brief A 16-year-old girl went missing Saturday night from a youth center on Chicago’s North Side. Police say Yesenia Aguilar was last seen around 11 p.m. at a party. Chicago police are asking for the public's help in locating a 16-year-old girl who went missing Saturday night from the North Side. Missing Chicago girlWhat we know:Yesenia Aguilar was last seen around 11 p.m. at a party at the Lamassu Youth Center located at 6301 N. Pulaski Road, according to a CPD endangered missing person alert. What you can do:Anyone with information on Aguilar's whereabouts is asked to contact Area Five's Special Victims Unit at (312) 746-6554.