HOUSTON – Harris County deputies have charged a former convict with capital murder in the death of a man they said he targeted for robbery using a gay dating app. Deputies said he opened an account on an app called Grindr to find people to rob. According to deputies, Davis told them he turned on Betanzos once he was in his apartment, knocking him unconscious. Police said Davis told detectives that he used a scarf to strangle him. Deputies said Davis told detectives that he poured bleach on the Betanzos’ body in an effort to destroy evidence, and drove off in the dead man’s truck after taking his iPhone and iPad.