Accomplice gets 35 years to life in stabbing of Allenstown teen
CONCORD — A Barnstead man was sentenced Monday to 35 years to life in prison as an accomplice in the attempted murder of a teenage girl stabbed 16 times and left for dead at Bear Brook State Park in Allenstown two years ago.
Kyle Buffum, 23, told his pregnant girlfriend, Samantha Heath, then 18, to murder Andrea Halvorsen, 18, of Allenstown, if Heath wanted her romantic relationship with Buffum to continue.
Heath, of Barnstead, pleaded guilty in Merrimack County Superior Court in January 2015 to attempted murder and was sentenced to 20 years.
Buffum admitted his part in the stabbing, but pleaded not guilty by reason of insanity.
A Merrimack County Superior Court jury rejected that defense in February, finding Buffum guilty of attempted murder, conspiracy to commit attempted murder and criminal solicitation.
Assistant Merrimack County Attorney George Waldron said he asked Judge Diane Nicolosi to sentence Buffum to 30 years to life for being an accomplice to attempted murder.
The judge added another five years because, Waldron said, she believed Buffum to be the mastermind behind the attack.
Evidence in the case included pages of cellphone texts between Buffum and Heath showing the two plotted for weeks to kill Halvorsen.
“I’d really appreciate if you took care of andrea so I can let some of my hate toward you go.” Buffum texted on Jan. 22, 2014. “And im sorry to nag you about Andrea but you need to do something soon. your going to lose me.”
On Jan. 26, Heath sent a text message to Buffum outlining her plan to stab Halvorsen in Heath’s car on the way from Concord to Allenstown.
Heath told him she would then pull into Bear Brook State Park and finish her off.
Halvorsen spent the day with Heath, who she thought of as a friend.
The two were driving through the park when Heath stopped the car and began to stab Halvorsen — 16 times in the chest, stomach, arm and back.
She then shoved Halvorsen out the car.
A man and his daughter driving through the park saw the teen bleeding profusely in a snowbank and called for help, saving her life.
Heath drove off, nearly running over Halvorsen, and fled to Barnstead, where Buffum lived.
She was found and arrested at his Amherst Drive home.
Buffum also was given two 15- to 30-year sentences, suspended for 40 years, on the conspiracy and criminal solicitation convictions.
If he is a model prisoner, he will be allowed to petition the court to have his sentence reduced by eight years, Waldron said.
Typically, a prisoner cannot do that until two-thirds of his sentence is served, which in Buffum’s case would be 22 years, or in 2038, the prosecutor said.