Who killed this Rio gang member?

When the gang Bonde Dos Cria took over the Nogueira community from the ADA gang, a man named Cigarrão reportedly broadcast the offensive on Facebook Live. When fellow gang members asked him whether the video was live, Cigarrão said he was going to delete it. He did not and was found dead a few days after posting it.

Now people are wondering who killed him. Was it the police who tracked him on Facebook? Or was he murdered by members of his gang who didn't want to be identified online?