saturday afternoon, sam romanelli tried desperately to save his coworker's life. crews were working on a new subdivision here in duxbury on tremont street. one of the men working in the trench had a tragic accident. as a 28-year-old was working on a water pipe, the saw he was holding firefighters say, kicked back and cut his throat. and i stuffed it into his throat. >> very serious. very grave injuries to the neck area. >> firefighters say the man sadly, didn't make it. he died from his injuries shortly afterwards at the hospital. romanelli says he tried to do everything he could. >> we tried to do everything we could to, you know, stop the bleeding. it is a tragedy. an unfortunate accident. >> reporter: osha was on scene with the fire and police department. to scenes like this are never easy. especially so close to the holidays. in duxbury tonight, 7 news night team. >> winter weather sweeping through the northeast. say it ain't so. a winter storm warning has been issued for parts of western massachusetts. and temperatures last are beginning to take a dive tonigh

. >> reporter: saturday afternoon, sam romanelli tried desperately to save his coworker's life. crews working on a new subdivision here off tremont men working in this trench had a tragic accident. as a 28-year-old was working on a water pipe, the saw he was holding firefighters say, kicked back and cut his throat. >> i ripped off my jacket and my safety vest. and i stuffed it into his throat. >> very serious. very grave injuries to the neck area. >> reporter: firefighters say the man, sadly, didn't make it. he died from his injuries shortly afterwards at the hospital. romanelli says he tried to do everything he could. >> we tried to do everything we could the bleeding. it is a tragedy. it is an unfortunate accident. >> reporter: osha is investigating. the fire chief says accidents like these are never easy. especially around the holidays. in duxbury, kelli o'hara, 7 news today in new england. >> nancy: two boston police officers are recovering after a fight with a suspect. take a look here. this is video from the scene friday night. the officers were in the common when they saw

romanelli said he was an experienced worker and a father. >> two kids. kids were here. >> reporter: as the investigation continues, construction crews pray for his family. >> one moment everything is fine. the next, you know, it's not. >> reporter: christine mccarthy, fox 25 news. >> jason: thankfully the victim's children were at the construction site but were not close to their father. we did reach out to the construction working on the project. the company was or wig. >> heather: just 8:04 now. the officers saw joseph demaio common while on patrol friday night. while talking to him, they found out he had a warrant for his arrest out of connecticut. so police say he violently fought back when officers tried to take him into custody. demaio will head to boston court with assaults on a police officer before before he answers to charges in connecticut. those injured officers were treated and released from the hospital. >> jason: this morning, the driver accused in this hit and run crash in chelsea has been arrested. we showed you this surveillance running

trench to build a water line for you in homes when his circular chop saw became bound co-worker sam romanelli tells fox25 saturday that he tried desperately save jason. >> we tried to apply pressure. we tried to keep him upright and do everything we could until the ambulance arrived. >> he couldn't breathe. it severed his carotid artery. they tried to control the bleeding, but his heart just stopped. >> reporter: duxbury police and so he shah have been investigating. jen still has questions. >> why did this happen. i mean -- why? >> reporter: while grieving, she is also trying to figure out how to care for 9-year-old dylan and 18-month-old twins colin and lilly as a single mom. >> this one has a lot going on. he has a disorder. >> reporter: meanwhile, jen says she is grateful for those who did everything they could tried to save him and revive him. all the doctors and nurses. >> reporter: christine mccarthy, fox25 news. >>> a wood stove is being blamed for starting a house fire in salem, new hampshire. fire fighters were called to a home on zion road. the man inside woke up to the sound of fi