News 4 WOAI Trouble Shooter Mireya Villarreal has uncovered a loophole in the law that has let hundreds, maybe thousands, of sex offenders go unregistered. Watch

It's being called modern-day slavery. Sex trafficking -- where children are bought and sold for sex. Watch

Property crimes account for about 90 percent of all crime in San Antonio. Watch

Guy Ramirez Perez was released from prison and registered as a sex offender. But police lost track of him in September. Watch

The flu vaccine is especially important for small children, the sick and elderly, but it's almost impossible to find. We've been hearing from a lot of you asking us to investigate why there is such a shortage of the seasonal flu vaccine in San Antonio. Watch