Kerith Burke: The Celtics are warming … Kerith Burke: The Celtics are warming up in orange shirts that read “End Gun Violence” on the front, and these organizations on the back. The Celtics are warming up in orange shirts that read “End Gun Violence” on the front, and these organizations on the back. pic.twitter.com/IahdWs8jZx — Kerith Burke (@KerithBurke) June 5, 2022