Boston police May 13, 2022 11:10 pm Search for Man Wanted in Deadly Mattapan Stabbing Boston police said Friday that they have an arrest warrant for a suspect — 39-year-old Christopher Howard — who faces a murder charge. Howard should be considered dangerous. If spotted, call 911. US & World Videos 20:35 Jurors in Karen Read trial visit site of John O'Keefe's death 2:39 American man awaits sentencing in Turks and Caicos ammo case 2:31 Billerica police sergeant killed in crash honored at funeral 2:05 MIT monitors pair of opposing protests on campus 2:39 Bruins try not to ‘dwell on the past' ahead of Game 7 against Toronto Maple Leafs