The Brief A 17-year-old suspect in a Rowlett shooting has been arrested in Dallas. The suspect in a Rowlett incident in which a 15-year-old was shot in the head has been arrested in Dallas. Rowlett shooting suspect arrestedXavier StevensonThe latest:Xavier Sen'cer Stevenson, 17, was identified through video canvassing after U.S. The three first met at nearby Kenwood Heights Park, where Stevenson allegedly tried to pay via a cash app. Stevenson allegedly left the car, came back a few minutes later, and held the brothers at gunpoint.