A good Samaritan helped police capture a robbery suspect last week by chasing and tackling the suspect for officers to arrest him, court documents show.

The suspect, Kingston Kuamoo, 23, of no local address, was charged Wednesday with first-degree robbery. He was being held Sunday at Oahu Community Correctional Center on $100,000 bail.

The escapade began when Kuamoo used a black handgun to rob a man of cash and a camera at about 4:30 p.m. Dec. 19, according to a police affidavit filed Thursday in Honolulu District Court. The affidavit did not say where the robbery took place.

Witnesses reported a white pickup as the suspect’s vehicle. Police went to the Leilehua Golf Course Road overpass to look for the truck on the H-2 freeway, saw it approaching and an officer drove onto the freeway, about eight vehicles behind the truck.

When police turned their lights and sirens on, the truck driver sped off, leading police on a chase from Kipapa Bridge to Ka Uka Boulevard, then back onto H-2, northbound to the Mililani Mauka offramp, at speeds upward of 90 mph.

Police terminated the pursuit because of the dangerous driving and saw the truck turn mauka-bound onto Meheula Parkway.

An officer in the pursuit was looking for the truck on Makaikai Street when a man standing near his vehicle flagged him down and asked whether the officer was looking for someone.

The officer mentioned the white truck, and the man said he saw the truck speed past, drop off a passenger and drive off on Ukuwai Street.

The officer asked the man whether he would help him find the passenger who was dropped off. The man agreed and got into the officer’s vehicle. On Ukuwai Street the man pointed out Kuamoo as the passenger who exited the truck, walking along a fence holding two bags. When the officer stopped, Kuamoo ditched the bags and a dark-colored object and ran.

Kuamoo scaled a fence, ran down a hill and onto the Mililani Mauka onramp where he attempted to stop a vehicle but failed, the document said. He reached into the open window of another vehicle, wrapping his arms around the frame as the driver drove past.

The driver stopped at a red light, and Kuamoo appeared to be completely inside the vehicle, the document said. The driver got out, and Kuamoo ran toward the median of Meheula Parkway.

The good Samaritan helping the officer chased Kuamoo, tackled him and held him until police could arrest him, the document said.

Police returned to the location where Kuamoo was seen casting aside items where they recovered property from a separate theft and what appeared to be crystal methamphetamine, the document said.