was there any murder related to the rap group?
Yes, Mizell was shot and killed at his recording studio in Queens.
Run-DMC
 Mizell was shot and killed at his recording studio in Queens. 
where is rage against the machine when we need them UNANSWERABLE what is "rage against the machine"? It is  an American rock band when was it formed? 1991 where were the band members? Zack de la Rocha (California),Tom Morello (Newyork) what is the role of the second one in the band? Guitarist what can you tell about his guitar playing technique? Morello is famed for his guitar style, which consists of heavy metal/punk hybrid riffs and hip hop-inspired sounds. when did he start his music career? At age 13, Morello joined his first band, a cover band called Nebula, as the lead singer has he appeared in any film? "Let Fury Have the Hour",  "Sounds Like a Revolution" which are some of his other works? Morello collaborated with American rap group Run-DMC on the song "Big Willie", Morello and RATM bandmate Brad Wilk joined with Maynard James Keenan of Tool and Billy Gould of Faith No More to record the song "Calling Dr. Love who founded the rap group you just mentioned? Joseph Simmons, Darryl McDaniels, and Jason Mizell.
wiki:10216889
Run-DMC [SEP] Murder
On October 30, 2002, Mizell was shot and killed at his recording studio in Queens. Fans and friends set up a memorial outside the studio with Adidas sneakers, albums, and flowers. In the aftermath, Simmons and McDaniels announced the official disbanding of the group. Mizell's murder remained unsolved until August 2020, with the arrest of Ronald Washington and Karl Jordan Jr.