At a Saturday vigil in a nearly empty Calumet Park, friends and family toasted to the life of Aurelio Guzman Jr. with Reese’s Peanut Butter Cups. The sweet treat had been a favorite of the 16-year-old gun violence victim, who went by “Junior.” Guzman was killed in the early morning of Oct. 31 in the 9900 block of South Avenue G, in the East Side neighborhood. He died at Trinity Hospital .