15-year-old cancer patient shot and killed outside home

A Duncanville, Texas teen suffering from cancer was shot and killed on Saturday night while moving his family's car from the driveway.

Ryan Lara, 15, was murdered outside his front door while moving the family's Chevy Suburban into the driveway after gunfire rang out. "He was screaming that he got shot. He was like, 'I got hit! I got shot! I got shot in my back!" Lara's older brother, Richard, told ABC 8 Dallas-Ft. Worth. "He said they were trying to steal the truck . . . that's all he said."

After Ryan was hit, Richard opened fire on the supposed robbers as they sped away, emptying 10 rounds while trying to hit the vehicle. Richard was uncertain though how many rounds may have struck the car, ABC 8 reports.

Just six weeks before the fatal shooting, Ryan had been diagnosed with cancer, and was undergoing chemotherapy for lymphoma twice a week at Children's Medical Center in Dallas. Ryan was expected to survive his disease.