Marlo stole candy in plain view of the security guard. Marlo is on some of that I'm Marlo bullshit....what you gonna do, fuck with me?
The security guard felt he had to at least say to the youngn, "hey, I'm not your enemy, but I am a man and at least respect me and my job....Damn."
Marlo had him merked just for speaking up, cause to a nigga like Marlo, the only "right" thing the security guard could have done, is looked the other way.
I just finished watching Season three again, and the security guard murder reiterated how destructive that way of thinking is; just like it was illustrated in Season three with Avon's war with Marlo, when Avon was at a point when he could have moved up to wholesale and left that banging on the corner shit to the younguns. NO FLEX