Jimmy is an African-American criminal in Liberty City. Jimmy took a cash-loan from the Faustin Mafia Family, possibly from Vladimir Glebov, and is expected to pay his debts. Niko Bellic is sent to steal Jimmy's car and take it to a lockup owned by Vlad. Jimmy is seen with another African-American associate.
Jimmy and his associate are probably M.O.B members.
Vlad is happier if Jimmy is NOT killed, as he can tense up Jimmy further.