Many in Chicago are still coming to grips with the shooting death of 18-year-old rapper Lil JoJo, but not all of the gone-too-soon artist's peers are in mourning. Yesterday 17-year-old Chief Keef, who also hails from the Windy City, responded to the news by taking to Twitter to openly mock JoJo before apparently succumbing to an uncontrollable fit of laughter.

"Its Sad Cuz Dat Ni--- Jojo Wanted To Be Jus Like Us #LMAO," Keef wrote. "HahahahahhahahahahahahahaahhAAHAHAHAHA #RichN---aS---.”

JoJo, born Joseph Coleman, was gunned down in a drive-by while riding on the back of a friend's bike. The murder comes on the heels of JoJo engaging in a rap beef with Chief Keef and fellow upstarts Lil Reese and Lil Durk. In April JoJo released a diss song aimed at the Keef and Durk.

Keef's tweet drew plenty of backlash online and police investigating the murder are said to be looking into any possible connection between the two artists. Reached by the Chicago Sun-Times, Keef's manager, Rovan Manuel, said his client's brash remarks were just a youthful indiscretion.

"A lot of the stuff Keef does, that’s just cause he’s a kid," Manuel said. "People forget that he’s a kid, a teenager … and kids make mistakes. He makes mistakes the hard way."

Previously, Chicago hip hop elder statesmen Rhymefest and Lupe Fiasco had denounced Chief Keef for willfully embodying and perpetuating a culture of youth violence.

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(Photos from left: globalgrind.com, Facebook)