LINCOLN, Neb. (AP) — Prosecution and defense experts have agreed that a Lincoln man charged with second-degree murder in the April 2014 death of his wife was legally insane at the time.

Lancaster County Attorney Joe Kelly said the experts agreed 42-year-old Ken Burklund suffers from a mental illness and didn’t know right from wrong when he killed 41-year-old Bettina Burklund at their home.

Burklund told investigators he was afraid of his wife and believed gang members had poisoned him.

District Court Judge John Colborn is expected to issue a verdict at a hearing next week.

If he finds Burklund not responsible by reason of insanity, as expected, Burklund would be evaluated at a state psychiatric facility and housed a mental health facility.