I woke up this morning and figured I'd call you
In case I'm not here tomorrow,
Dave’s brother called Kendrick. He’s lost and looking for someone to talk to. The first thing he done in the morning was call Kendrick, just in case he dies tomorrow.
This foreshadows his death at the end of the verse, and builds up that atmosphere of ever-present, potential danger you can expect in Compton, that you could die at any moment.
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