ROCKLAND (AP) – Two months after an 11-year-old boy who was fishing on a railroad trestle with three adults was struck and killed by a freight train, two of the adults face misdemeanor criminal charges.

On Friday, 25-year-old Randy Heald of Warren was summoned for endangering the welfare of a child and criminal trespass. Trisha Schumann, 20, also of Warren, was summoned for criminal trespass, according to District Attorney Geoffrey Rushlau.

“This has been a terrible tragedy for the family of Nathan Chheng,” Rushlau said. “It also shows the responsibility we as adults have to ensure the safety of children entrusted to our care.”

The April 23 accident in Warren also seriously injured a 26-year-old man.

Heald and Schumann were fishing from a trestle just south of the Depot Road crossing with Chheng and Aaron Staples, both also of Warren. Police said that when a train came around a curve along the tracks, Chheng yelled, “Train!” and tried to run down the tracks.

He was killed instantly. Staples, who attempted to grab the boy when he stumbled, was hit on the head by the train. Heald and Schumann managed to jump free of the tracks.

Given the major injuries Staples suffered “while trying to lead Nathan Chheng to safety,” he will not be charged, Rushlau said, noting he remains under medical care.

Rushlau said that neither alcohol nor drugs played a role in the accident.

“Actively used railroad tracks may seem appealing to us for many different activities, such as fishing or even just walking,” he said. “Those activities are illegal, however, and, as here, can be extremely dangerous. Our law against trespass on railroad tracks has to be enforced. When such a trespass leads to a terrible result it is even more important to bring those responsible before the court.”

Rushlau said an arraignment date in District Court has not been scheduled.

The trestle south of Depot Road connects North and South ponds and is a popular fishing spot that is primarily accessed by walking from that crossing near the public landing.

Signs posted at that crossing clearly warn people that the tracks are off limits, Maine Eastern Railroad General Manager Jonathan Shute said.

“The sympathies of Maine Eastern Railroad are with the families of the deceased and the person seriously injured in this incident,” Shute said Friday.