Petaluma police Wednesday continued to unravel what they said was a brazen armed kidnapping from a westside residence.

The three suspects, a woman and two men, remained in the Sonoma County Jail on Wednesday with bail set at $5 million apiece.

The high bail was due to the severity of the crime, including use of a gun in the kidnapping and evidence of suspected drug sales found in the suspects' vehicle, said Petaluma Police Lt. Tim Lyons.

The three are suspected of taking a 30-year-old Petaluma man from outside his Sixth Street apartment at about 9 p.m. Monday.

The victim apparently was in the courtyard of the apartment complex when they arrived.

A witness reported seeing a woman knock on the man's door before she located him in the courtyard. She pulled out a gun and aggressively ordered him into a SUV, Lyons said.

Police officers were called. They stopped the silver Chevrolet Tahoe about two blocks away and held the occupants at gunpoint before taking the three into custody.

Officers arrested Genoveva Ramirez, 28, of Santa Rosa, Eduardo Hernandez, 32, of Sebastopol and Raul Atilano-Lopez, 29, of Penngrove on suspicion of kidnapping, robbery, carrying a loaded weapon, possession of methamphetamine for sale and other charges.

Ramirez, who police believe brandished the gun, also was arrested on suspicion of assault with a deadly weapon and making terrorist threats.

During the alleged kidnapping, witnesses reported the woman threatened the victim's roommate with the gun when the man briefly came out of the apartment, Lyons said.

In a search of the SUV, officers found a fully loaded Smith & Wesson semi-automatic handgun, along with 16 40-caliber rounds, inside the center console. The gun's serial numbers were filed down, but police traced the weapon to one reported missing in 2008 from the Central Valley town of Ceres.

Also in the compartment was a small amount of methamphetamine and marijuana and multiple baggies, indicating drug sales, said Lyons.

Lyons said the four people were at least acquaintances.