The Brief Henry Steven Aguilar, 18, is charged with capital murder and evading arrest in Harris County. An 18-year-old is facing a capital murder charge after he was accused of killing a man he attempted to rob, according to the Houston Police Department. 18-year-old allegedly involved in robbery, deadly shootingWhat we know:Houston police officers arrived in the 6300 block of Skyline Drive after a man reported a robbery. Investigators report after the vehicle robbery on Skyline Drive, the suspect with the rifle, now believed to be Aguilar, drove to the corner of Unity and Skyline Drive. What we don't know:Houston police have not reported if the other two suspects in the vehicle robbery on Skyline Drive have not been identified.