An ex-teacher accused of stabbing his wife and leaving their terrorized children alone with the body was arrested Friday in Mexico.
Robert Castorena, 38, was arrested in San Miguel de Allende, about 140 miles northwest of Mexico City, Sacramento police said.
Castorena's wife, Janice, was bludgeoned and knifed to death sometime between Oct. 1 and Oct. 3 at their home in Sacramento.
Authorities discovered the dead woman almost two weeks later when the couple's 8-year-old son was picked up shoplifting at a grocery store and brought police back to his house. A 14-year-old daughter also had been in the house with the decomposing body, which was shut in a bedroom.
Police said the children were too frightened to seek help directly because Castorena, a former high school social science teacher, had threatened them with a knife.
Castorena was found at an apartment by American authorities who got the address from a lease agreement, and who traced his use of credit and ATM cards.