Thomas died in single vehicle accident on Saturday morningCeltics guard scores game-high 33-point day after his sister’s deathIsaiah Thomas played in shoes bearing his sister’s name on Sunday night. That face — all determination and brambled beard — still fronts much of the league’s promotional mat. No arrest has been made yet in the incident, a spokesperson told the Guardian on Thursday afternoon. tball of their season at exactly the right time (ie at the same time their first-round opponents, the Cavaliers, are playing their worst).