Sheriff's deputies arrested a third person at about 12:15 p.m. Tuesday in relation to a recent home invasion robbery.
Deputies were seen with guns drawn arresting Willard Ernst at the intersection of Sierra College and East Main Street on suspicion of being a part of the robber.
Four masked gunmen entered a home in Big Oak Valley Feb. 27.
The two victims told deputies that four masked men armed with guns forcibly entered the residence while they were sleeping, threatened to shoot the residents, then bound and tied them with duct tape.
The suspects allegedly stole an unknown amount of medical marijuana, a rifle, a shotgun, and a semi-automatic handgun, as well as electronics, before fleeing.
Brian David Estrada, 35, was detained that day, along with Michael Joseph Cameron, 31.
Information found at the scene led investigators to identify Cameron as one of the suspects, and he was arrested at gunpoint later that morning in Grass Valley, Nevada County Sheriff's Lt. Shannan Moon said.
Cameron was arrested on suspicion of robbery, possession of a loaded firearm in a vehicle, possession of stolen property, criminal conspiracy, and committing a felony while on bail. Bail was set at $50,000 and he is scheduled to appear in court Thursday.
Cameron also faces charges of possessing controlled substances, possession for sale, and transportation for sale, as well as driving on a suspended license, stemming from a January arrest. Bail has been set at $22,000 in that case.
Estrada was in Cameron's vehicle and was briefly detained; evidence from the robbery allegedly was located inside the vehicle.
Detectives developed evidence linking Estrada to the crime, as well, and he was arrested without incident Friday, Moon said.
Estrada was booked into county jail on suspicion of robbery and criminal conspiracy, and was being held in lieu of $50,000 bail.
To contact Staff Writer Liz Kellar, email firstname.lastname@example.org or call (530) 477-4229.