Scott Jones, 43, has been named by authorities as the man who killed his wife, Mei Kum Jones, 43, and the couple's twin infant boys, Colt and Cameron, both 11 months, before killing himself on November 18, reports WHDH. The family were from Arlington, Massachusetts.
Jones is reported to have strangled his wife before slashing the throats of his two young sons.
Here's what you need to know about him:
1. He May Have Had OCD
Neighbors have said that Jones may have suffered from an obsessive compulsive disorder, that he was "meticulous" about every little thing. It's reported by local news blog, Wicked Local, that Jones took Valium prior to taking his own life.
2. He Was a Paramedic
He worked as an EMT for Action Ambulance between 1998 and 2006. The father-of-two was stationed at Stoneham Fired Department in Stoneham, Massachusetts. The CEO of Action Ambulance, Mike Woronka, told WHDH:
Scott was a good employee. He was a good field provider. There is nothing that would indicate any red flags in his file. Truck always had to be spotless so he was always cleaning the truck. His checklists were always done on time and meticulously.
3. He Was a First Responder to a Mass Shooting in 2000
In 2000, he was a first responder to the scene in Wakefield, Massachusetts where Michael McDermott committed a deadly workplace shooting . The day after Christmas in 2000, Michael "Mucko" McDermott shot and killed seven of his co-workers with a variety of weapons, including an AK-47. McDermott was later sentenced to seven life-sentences without parole.
Jones was recognized for his work in Wakefield by Congressman Ed Sharkey in Washington D.C. He was awarded the Star of Life, reports The Boston Herald.
At one point wanted to leave the life of an EMT and move into being a radiology technician.
4. He Has a Criminal Record
He has been arrested at least once before, for failing to pay child support to his first wife.
5. He Has Threatened Suicide in the Past
According to Wicked Local, in March 2010 he called Mei Kum Jones, his then-girlfriend, and threatened suicide. After she called 911, cops eventually tracked Jones down in the Break Heart Reservation in Massachusetts.