An 18-year-old man is scheduled to be arraigned tomorrow on charges of sexually assaulting two women in separate attacks in Santa Ana and Anaheim.

Raymond Boykin of Anaheim was named in a $1 million arrest warrant following the sexual assault last Wednesday of a 19-year-old woman in a parking structure at the Westfield MainPlace Mall in Santa Ana, according to Santa Ana police Cpl. Anthony Bertagna. Two days later, he allegedly sexually assaulted a 42-year-old woman about 6:15 a.m. in the parking lot of Sa Rang Community Church in Anaheim. The victim managed to get free from her attacker and run across the street to a gas station, where she called police, Anaheim police Lt. Bob Dunn said.

When police returned to the scene, the woman's car was missing, presumably stolen by her attacker, Dunn said. Police spotted the stolen car about 11 a.m. Friday at Sycamore and Pauline streets and a chase ensued when the driver refused to pull over, Dunn said. The chase ended at Olive and Sycamore streets when the car crashed, Dunn said.

Three of the four occupants in the car remained at the scene, and one man ran away but was caught, according to Dunn. Boyken went to a Verizon store at the mall to buy a phone, but "he was 20 bucks short," Bertagna said. Boyken left the store and robbed and sexually assaulted the woman in the parking garage at knifepoint, then returned to the Verizon store to buy the phone, Bertagna alleged.

"The (surveillance) video we have shows him with her purse getting the extra 20 bucks out to buy the phone," Bertagna said. "He's sweating profusely, taking his jacket off and going through her wallet."

The purse seen in the store video matches the handbag stolen from the victim, Bertagna said.

Boyken is charged with one felony count each of forcible oral copulation, second-degree robbery, unlawful taking of a vehicle and evading while driving recklessly and two felony counts of assault with the intent to commit a sexual offense. Boykin also faces sentence-enhancing allegations for the personal use of a deadly weapon. If convicted at trial, he could face up to 27 years to life in prison.