State police say the man who died inside the home of his estranged wife over the weekend was armed with a box cutter and was monitoring the inside of the house with a baby monitor.  The State Medical Examiner’s office said Monday that 37-year-old Christopher Darner of Corinth died from asphyxia due to compression of the neck.

Darner was killed at around 2:30 Sunday morning after entering a home in Corinth occupied by 22-year-old Miranda Darner. The couple was separated and Mrs. Darner had a protection order issued against her husband.

Also in the home at the time of the incident was 24-year-old Kirk Damon Junior of Searsport, who is now recovering from stab wounds to the neck and abdomen. Police say Damon's friend, 21-year-old Zachary Joseph of Belfast, who was also in the home, came to the aid of his friend by putting Darner in a choke hold. Joseph and the estranged wife were not injured.

Police say Darner had went into the residence sometime Saturday and rigged the baby monitor so he could keep track of what was going on in the house before he entered overnight. The death has been ruled a homicide but no has been charged at this point. Detectives are considering self-defense and defense of a third person as a possible motive.