As he was being arrested Monday, a 19-year-old man suspected of killing two people and injuring five others in San Antonio promoted his Instagram account to reporters.
The man, Kieran Christopher Williams, is facing capital murder charges in the fatal shooting Sunday during a concert inside a club, San Antonio police said Monday. Detectives think that at least one of the victims knew the attacker and that the incident was not random, but police did not detail a motive.