El-P's post follows Killer Mike's viral video message last week to protestors in Atlanta in which he said he was "tired of seeing black man die".
"Here we are 80 years later, and I watched a white officer assassinate a black man, and I know that tore your heart out," he stated.
Explaining how political change could come about from this, he continued: "Two of the most effective ways, is first, taking your butt to the computer and making sure you fill out your census to make sure people know where you are and who you are. The next thing is to exercise your political bully power and go into political elections, and beating up the politicians that you don't like. Now is the time to do that. But it is not time to burn down your own home."