The New Hampshire Supreme Court has unanimously upheld the conviction of one of the killers in a 2009 Mont Vernon home invasion.
In his appeal to the Supreme Court, Christopher Gribble argued his conviction should be overturned.
Gribble, now 21, was convicted in 2011 of first-degree murder for killing Kimberly Cates in her home. He was also found guilty of attempted murder for attacking her daughter Jaimie Cates.
Gribble argued that his conversations with police should have been suppressed and that the venue of the trial should have been changed.
In a ruling issued Tuesday, Supreme Court justices rejected all of Gribble’s arguments, including that the jury was improperly instructed about the insanity defense.
Gribble is serving a life sentence without the possibility of parole.
