BELL GARDENS, Calif. — First, he drugged and kidnapped his girlfriend’s 15-year-old daughter, the police in Santa Ana, Calif., said. Later, he said that if she tried to get away, her family would be deported. Eventually, he forced her to marry him, and she had a baby.

On Wednesday, 10 years after the man is said to have abducted the young woman, the police announced that he had been arrested on suspicion of kidnapping for rape and false imprisonment, among other charges. The man, identified by the police as Isidro Garcia, 41, was to be arraigned on Thursday.

Several neighbors interviewed Wednesday evening in this southeast suburb of Los Angeles said the couple, whom they knew as Tomas and Laura, had been here for years and appeared to live a mundane but happy life, hosting annual birthday parties for their 3-year-old daughter, Lupita.

“I don’t believe it,” said Erika Sanchez, 24, who lives next door and occasionally babysat the young girl. “It doesn’t seem right.”