SAN ANTONIO -- A former educator at St. Anthony High School, who was stripped from the priesthood years ago, is headed to prison for a long time.

For close to 10 years, Carlos Lozano has lived a free life, serving a probation sentence for the sexual assault of four boys.

But Tuesday evening, that freedom was officially taken away, Jenny Davis of KSAT 12 News reported.

Judge Philip Kazen sentenced Lozano to 20 years in prison -- the maximum sentence -- after ruling that the former priest violated his probation by downloading pornographic pictures from the Internet onto his computer.

Lozano admitted to visiting gay Web sites while "exploring his sexuality," said his probation officer Franco Olvera.

Olvera said he discovered the sexually explicit material several months ago. Lozano was only months away from the end of his probation sentence.

Lozano's probation sentence came after he pleaded no contest to charges of fondling the genitals of four St. Anthony boys.

One of the boys later committed suicide. Barbara Garcia, the boy's mother, said she is relieved that Lozano is going to jail.

"I miss my son so much right now," she said. "It's been just horrible living with this on my mind for 10 years."

"I wish this would have happened 10 years ago so my son could be standing next to me," Garcia said.

Lozano showed no emotion when his fate was read aloud. His defense attorney said he plans to appeal the judge's decision.