1 of 3 Zoom screen capture photoDevaughn Johnson appears Tuesday in a Haverhill District Court electronic hearing related to the murder of Jose Vasquez. ZOOM MIKE LABELLA/Staff photoDavid Trongeau, right, appears at his arraignment in Haverhill District Court on Nov. 24. He is charged in the murder of Jose Vasquez. File photoPolice say Jose Vasquez was stabbed to death in his Haverhill home. HAVERHILL â One month ago, a judge allowed Devaughn Johnson to be shielded from view in court after he was linked to a stabbing death in Haverhill. But in a Zoom court h...