According to the Chicago Tribune, JoJo was one of two teenagers killed in separate shootings on the South Side of Chicago last night. The report says JoJo—real name Joseph Coleman—was killed around 9 p.m. on the 6900 block of South Princeton Avenue in the Englewood neighborhood. That would be about 5 hours after he began tweeting about Lil Reese.

The 18-year-old was found unresponsive with a gunshot wound. According to witnesses, JoJo was riding on a bicycle when a tan or grey vehicle approached him and someone inside the car opened fire, striking JoJo at least once. He was pronounced dead at the University of Chicago Medical Center.

Police are looking into whether the shooting was gang related.