One of the men worked for them for quite a long time. Another coworker saying they were both great guys, both family men. The commissioner tells us this evening, the investigation will take several days. Live in boston, nicole estaphan, Wcvb Newscenter 5. Ben the area could be blocked off for days. Our Investigation Continues with diane cho. Diane . E shutdown down as crews continue their efforts. Dartmouth from wrren to tremont will be closed for some time. It will not be closed for hours, but could be close for days. The homicide unit is at the scene, which is common in these situations. We will work with osha. We will work with the Fire Department to ensure there is no but we always do this when we look at deaths like this. Diane this stretch of dartmouth from warren to tremont will be shut down for some time. Diane cho, Wcvb Newscenter 5. Maria there is no such a in the workers did anything wrong today and thats part of the investigation. New at 6 00 5 investigates uncovering previ