Chicago authorities are looking into a possible connection between the Tuesday murder of Chicago rapper Lil Jojo and fellow Chi-Town rapper Chief Keef. After hearing of Jojo's brutal death, Keef tweeted, "Its Sad Cuz Dat N***a Jojo Wanted To Be Jus Like Us #LMAO."

Apparently, the #300 that can be found at the end of many Chief Keef's tweets is a known reference to the Black Disciples gang. 18-year-old Lil Jojo was part of the Gangster Disciples, a main rival of the Black Disciples, and had reportedly been engaging in Twitter beef with the other gang.

It's also important to note as well that Chief Keef claimed his Twitter was hacked on Wednesday, but there's no telling whether or not that's true. Hopefully authorities can get to the bottom of it.