Cops are searching for this man and a second passenger, both suspects in the fatal shooting of a Bronx livery cab driver yesterday. Police believe one of them opened fire after refusing to pay the fare.

Cesar Santos, 48, drove the two thugs to Sedgwick Avenue near West 229th Street in Kingsbridge around 1:40 p.m.

“They didn’t want to pay him, that’s when they shot him,” said Santos’ dispatcher at Excellent Car Limo, Emilio Gomez.

Santos was rushed to St. Barnabas Hospital, where he died about eight hours later.