A 72-year-old man was walking alone in the 2600 block of Fordham Street at about 8:15 a.m. when two black men approached him, knocked him to the ground, and stole his wallet, police said.
The men hopped into a waiting 2010 Lexus, and as the car sped off it collided with a passing SamTrans bus, police said. Undeterred, the suspects maneuvered around the bus and disappeared from sight.
Within an hour, police spotted a vehicle matching the suspect vehicle description across town.
Police detained Thomas Clark, 35, and another person in the vehicle in front of Clark's home before identifying Marlyn Clark as a second suspect in the robbery.
Marlyn Clark, 28, was located by police as he tried to cash an unemployment check and was placed under arrest.
Police determined that the brothers split the $10 the victim had in his wallet, then discarded the wallet in Menlo Park. The wallet was recovered, the cash was not.
The Clark brothers were booked into San Mateo County Jail on suspicion of robbery, conspiracy, and elder abuse, police said.