Amari Brown was killed by gunfire. (AP Photo)

CHICAGO (AP) — Authorities say a 7-year-old boy who was celebrating the Fourth of July with his family was among three people who were shot and killed overnight in Chicago. Police say the child, Amari Brown, was shot after someone opened fire just before midnight on July 4 in the Humboldt Park neighborhood. He was pronounced dead on July 5 at Stroger Hospital. According to Police Superintendent Garry McCarthy, the boy’s father, a “ranking gang member,” had been the intended target. No one was taken into custody on July 5. Additionally, a 26-year-old man was fatally shot in the Albany Park neighborhood and a 26-year-old man was gunned down in the South Shore neighborhood. Police also say two men, ages 25 and 31, were killed after dawn on July 5 when somebody fired on their SUV, which sped away and crashed.