NE: Couple intends to commit suicide together but one lives and now is charged with a crime

A couple in their mid 30's made a suicide pact to end it all with a cocktail mixture of vodka and pills. However she lived and he died and now she is charged  with a Class IV felony in NE punishable  by a maximum five years imprisonment, a $10,000 fine or both. The article  elaborate as to the reason for the double suicide pact.