Published: Feb 12, 2014 11:18 AM EST
Updated: Feb 12, 2014 6:41 PM EST

COLLIER COUNTY, Fla.- Jury selection is underway for a murder trial involving the man accused of fatally shooting his estranged wife at a Naples hospital.

Jeffery Moretz faces Second Degree Murder charges for shooting his wife, Christine, at Physicians Medical Center three years ago.

Investigators say Moretz was upset at Christine for having an affair.