A 12-year-old boy was killed in a shooting in Englewood Sunday evening, according to Chicago police. Police said officers responded to a gunshot detection alert in the 600 block of West Marquette Road at about 6:35 p.m. After touring the area, police said they discovered the boy’s body on the street with a gunshot wound to the head in the 6700 block of South Lowe Avenue. Deputy Chief Gilberto .