A retired NYPD transit officer from Long Island was arrested on Tuesday and charged with murdering his wife. He was reported missing last Thursday, the same day his wife's body was discovered in her bed, in the couple's home in Lake Grove.

CBS reports that Suffolk and Dutchess County detectives and Metro-North police discovered 49-year-old Paul Leitgeb on the Appalachian Trail in Dutchess County on Tuesday afternoon.

Officers followed a tip that Leitgeb had been seen on a hiking trail in the upstate town of Pawling. Leitgeb, who had self-inflicted wounds on his wrist and throat, reportedly threatened to harm himself further when officers arrived, while holding up a boxcutter. He was eventually arrested and taken to Mid-Hudson Regional Hospital in Poughkeepsie.

Leitgeb served as an NYPD transit cop from 1990 to 2011. He has 7-year-old twins with his late wife, 42-year-old Tricia Odierna, who was also the primary caretaker of three nephews, following her sister's death. Odierna worked as a real-estate attorney.

A GoFundMe page for the couple's children has raised more than $20,000 of its $30,000 goal in less than a week.

"Tricia Odierna was one of the most beautiful souls I ever had the honor of knowing," writes the family friend who launched the campaign. "She would give you her last penny, pick you up at 2 am and drive you wherever you needed to go."

Leitgeb, who has been charged with second-degree murder, will be scheduled for arraignment once he's discharged from the hospital.