Ricky wasn't street smart & he was a Mama's boy.
Doughboy told him not to bring that football cuz he knows nikkas will take it & dude brought it anyways Doughboy being the big bro gotta to take the fall.
He was wearing the wrong colors in the wrong area when dude bumped into him. Doughboy & his people are wearing neutral colors.
He was gonna throw away the opportunity to go to college so he can join the army.
Dude stops dead in the middle of getting chased by killers to take a piss & then decided to split up.
Ricky was always being coddled like a little boy throughout the movie. He wasn't built to survive.