PORTLAND, Maine (AP) A jury is being selected for the trial of a Maine man who claims he fatally shot his wife after mistaking her for an intruder.

Officials with Cumberland County Superior Court say the jury selection in the trial of 36-year-old Noah Gaston of Windham is taking place on Friday at the Portland court. Thirty-four-year-old Alicia Gaston died from a single shotgun shot in 2016 in the stairwell of the family’s home.

Gaston’s trial is expected to begin Monday. He has said he thought he heard noises downstairs on the morning of the murder.

Police have said there are inconsistencies in Gaston’s story. He’s charged with a count of intentional or knowing murder.

Court documents say the couple’s three young children were home at the time of the shooting.