Police need your help finding the suspect in the attack and robbery of a 66-year-old on the M train in Brooklyn.
This amateur video shows the man police are looking for.
Cops say he attacked the victim on a Manhattan-bound train at the Myrtle/Wyckoff Avenue station around midnight Sunday.
They say the suspect knocked him to the floor, kicked and punched him, then ran off with his wallet, which contained $20 and a credit card.
The victim was taken to the hospital with cuts on his face and a broken rib.
He's in serious, but stable condition.
Cops describe the suspect as 20-to 25-years-old, 5'8" and 175 pounds.
Anyone with information on the case should contact the Crime Stoppers hotline at 1-800-577-TIPS, or text CRIMES and then enter TIP577, or visit www.nypdcrimestoppers.com.