Houston man charged with sexually assaulting disabled roommate

From KTRK-TV in Texas:

HOUSTON -- A Houston man accused of sexually assaulting his 20-year-old mentally disabled roommate was behind bars March 22.

According to the Houston Police Department, Mario Dean Aguilar was picked out of a photo lineup by his victim.

Since the victim moved in with Aguilar in June 2010, he had been forced to perform sexual acts on a daily basis, officials said.

The man decided to move out of Aguilar's east Houston home and started to pack his things to leave March 12, police said. That's when police said Aguilar found out and grew angry, telling the victim "to go into the bedroom and drop his pants," court documents state.

Aguilar became angrier when the young man refused and he commanded a dog to bite the victim, police said.

Investigators said the man was afraid after the dog bit him that Aguilar's threats to have the dog hurt him again were true, so he complied with Aguilar's demands.

The victim later told his case worker with the Harris County Mental Health and Mental Retardation Association what happened, and she called police to launch an investigation.

Aguilar, 52, has an extensive arrest record with charges in Harris County dating back to 1993 and ranging from drug possession to assault and prostitution. He was arrested Monday and charged with sexual assault of an adult. He was being held at Harris County Jail Tuesday without bond.