Maricopa County Sheriff's deputies and SWAT team forced entry into the motel room Wednesday evening and arrested 26-year-old Sarah Martinez.
Martinez's whereabouts were unknown since May 27 when Jacquez's body was found about two miles north of NM 516 by a mountain biker. An autopsy revealed Jacquez was shot five times in the back of the head.
Working off an tip from a reliable source that the three people wanted in connection with Jacquez's shooting were holed up in a room at the motel, Maricopa County Sheriff's deputies responded to the area about 4:15 p.m. and set up a perimeter, Maricopa County Sheriff's spokesman Sgt. Brandon Jones said.
For several hours, deputies and Maricopa County SWAT team attempted various methods to get in contact with the suspects they believed were in a room.
They eventually went door to door and when the SWAT team knocked on one room, Martinez answered.
She was taken into custody without incident, Jones said.
Authorities continue to look for Richard Winters, 29, and Vincent Montoya, 26. Deputies believe the men could be in the Phoenix area and may be armed and dangerous, Jones said.
Three other people were found in the room with Martinez, two men and a woman. The two men were held for questioning and the woman was arrested for harboring a fugitive.
The SWAT incident ended about 8:30 p.m., but deputies remained on scene to obtain a search warrant for the motel room.
San Juan County Sheriff Ken Christesen confirmed Martinez's arrest and said his agency continues to work closely with Maricopa County officials.
San Juan County Sheriff's deputies on June 5 arrested a fourth suspect in the shooting, Gabriel Alcon, 22, and charged him with third-degree felony tampering with evidence and fourth-degree felony conspiracy to commit tampering with evidence.
He has not yet been charged with the murder.