The couple had been in a relationship for more than 30 years.
If convicted, the man faces up to three years' jail, a fine, caning, or any combination of such punishments.
The victim's 57-year-old father shared that his son had been addicted to drugs.
Authorities will continue investigating how the incident unfolded.
The passenger claimed they heard “soft moaning” during the ride, with the vehicle allegedly swaying “left and right”.
The refurbished trains now feature refreshed interiors, including new seats, flooring, wall panels, handrails and grab poles.
The woman "abused the victim for no reason at all" when there was no evidence of provocation, said the prosecution.
"Did we do something to offend you?" asked the restaurant.
"We are glad to put this incident behind us," SPH Media said.
The private ambulance was transporting a patient to hospital accompanied by a medic and a nursing home staff when the…