Updated

A California man suspected in the abduction and sexual assault of a 10-year-old girl has been captured in Mexico, authorities said Wednesday.

The fugitive suspect, Tobias Summers, was nabbed after checking himself into rehab under a fake name. Police were able to identify him from a Superman tattoo on his chest.

Summers, 30, was taken into custody by Mexican authorities acting on information from the FBI, according to bureau spokeswoman Laura Eimiller.

"We're glad we got him," said Los Angeles police Deputy Chief Kirk Albanese, who heads the detective bureau. "We're working on getting him back to Los Angeles right now."

Officers acting on a tip from the FBI tracked Summers to a drug and alcohol treatment facility in a tiny village on the coast between Tijuana and Ensenada, according to Alfredo Arenas, international liaison for the Baja California state police.

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"He was pretty scared," Arenas said. "We had him in custody very fast."

Summers, who was expected to be arraigned Friday, was charged in his absence by Los Angeles County prosecutors with kidnapping, burglary and nearly three dozen counts of sexual assault.

The victim vanished from her home in the Northridge area of Los Angeles on March 27. She was found about 12 hours later wandering near a Starbucks several miles away.

Authorities later arrested Daniel Martinez as a suspected accomplice and revealed that Summers had been spotted in a video recording as he crossed the border into Mexico at Tecate, east of San Diego.

Authorities believe Summers broke into the girl's home planning to burglarize it but instead abducted her at knifepoint. They believe Martinez was waiting outside in a car the two used to flee with the girl.

Martinez soon abandoned the car and vanished, police have said, while Summers took the girl to a vacant home where he assaulted her.

Summers is charged with kidnapping, burglary and nearly three dozen counts of sexual assault. He's described as a transient with a criminal record including convictions for burglary and grand theft.

On Wednesday, the FBI website showed pictures of Summers and his tattoos with the word "captured" across the bottom of each photo.

Martinez, 29, has pleaded not guilty to kidnapping and burglary.

Mexican authorities distributed "wanted" posters with Summers' picture and put police in the cities of Tecate, Ensenada and Rosarito Beach on alert.

Summers has a criminal record dating to 2002 that includes arrests for robbery, battery and grand theft auto. Court records show Martinez has been convicted of burglary and grand theft.

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The Associated Press contributed to this report.