From CBS local news in Texas, of all places.

Excerpt:

A North Texas teacher, who is HIV positive, was caught leaving the home of a 15-year-old boy. Police say when Roger “Joe” Kessler was questioned and he admitted having a sexual relationship with the teen. Now Kessler is charged with sexual assault of a child.

The details from his arresting documents are disturbing and have both law enforcement and Richardson ISD officials on alert.

Kessler is a music teacher at Richardson ISD Academy. The 43-year-old is the man police say admitted to having sex with a 15-year-old boy, at least four times. And authorities say the sexual acts were performed without Kessler telling the teen he has HIV.

McKinney police say they were called to a home in the 1300 block of Gough Street on Wednesday. While authorities were responding to a burglary in progress, they arrived to Kessler being detained by the homeowner.

Apparently the teenager’s mother had arrived home and thought her home had been burgled, because she saw a man leaving her backyard.

Further investigation revealed Kessler was trying to run away from the house where he admitted to having just had a sexual encounter with the teen.

Court documents detail how Kessler and the 15-year-old met using a smart phone application called Grindr. The app bills itself as a “popular all-male location-based social network,” but is known as a place for men looking for sex to connect.

According to police documents, Kessler even logged on to Grindr and showed officers at the scene a series of text messages he had exchanged with the teen.

Previously, I wrote about a Center for Disease Control report that found that men who have sex with men were 150 times more likely to contract HIV, and another CDC report that found that 62% of men who have unprotected sex with other men know they have HIV.