Description:Twelve people were injured overnight in separate shootings across Chicago.
A 15-year-old boy was shot around 11 a.m. Sunday morning in the 7000 block of South Elizabeth Street.
He was treated at Comer Children's Hospital for a gunshot wound to the back and is listed in critical condition.
Meanwhile, a 22-year-old man and a 26-year-old woman were shot around 3:30 a.m. at a party in the Austin Neighborhood.(1:02)