NASHUA, N.H. -- A 21-year-old man admitted in court Monday that he hacked a mother to death and seriously wounded her young daughter during a 2009 home invasion but said he was insane when he did it.
Christopher Gribble of Brookline waived his right to a jury trial on whether he killed 42-year-old Kimberly Cates and seriously wounded her 11-year-old daughter, Jaimie.
The burden now shifts to Gribble's lawyers to prove he was insane during the Mont Vernon home invasion.
Gribble told Superior Court Judge Gillian Abramson he was diagnosed in 2007 as having "anti-social and personality disorder" and that a doctor prescribed the antidepressant Prozac. He said he discontinued the drug on his own. That was the only reference during the 90-minute hearing to his mental state.
