Updated March 27, 12:45 p.m.

A Brookfield man who had a months-long sexual relationship with a 14-year-old Brookfield girl was sentenced to 13 years in state prison by Cook County Judge Carol Kipperman on March 21 at the Maybrook courthouse.

Anthony Santoyo, 53, in a deal with prosecutors, pleaded guilty to one count of criminal sexual assault. He had faced 48 total counts of criminal sexual assault and aggravated criminal sexual assault.

Santoyo, who worked at a Brookfield restaurant, began the relationship with the girl in November 2010, according to the report police made after he was arrested in March 2011.

Police learned of the relationship between Santoyo and the girl after her father phoned police on the night of March 13, 2011 and reported his daughter missing. Earlier in the day, the girl and Santoyo were supposed to have gone to the North Riverside Park Mall to do some shopping, but they never returned home.

Instead, Santoyo took the girl to a motel on Mannheim Road in Franklin Park. When the two returned home on March 14, they at first told police they went to the motel because it had a swimming pool and the girl wanted to go swimming.

Police went to the motel and found six open beer cans and an open wine cooler inside the room, but no further evidence.

Later on March 14, the girl confided to a relative that she and Santoyo had engaged in an ongoing sexual relationship for months. After further investigation, police arrested Santoyo at the restaurant where he worked on March 16.

Santoyo had been held without bond at Cook County Jail since his arrest. He was indicted by a grand jury on April 8, 2011 and pleaded not guilty to all 48 counts in the indictment on April 28.

He was transferred to the Stateville Correctional Center in Joliet on March 23.