A chilling revelation from a discovered diary

Prompt: Flipping through your library books for research, you find one of the books you incorrectly checked out. It’s a handwritten journal authored by someone you know. Who wrote it and what does it say?
Source

I flip through the pages, the dates are from over 25 years ago, I know some of the names. I know some of the names. A particular name jumps out of the page, it's a teacher from the Science department, we greet and catchup sometimes, he knows me mostly because of my uncle who he went to school with here many years ago. His daughter, who is two years below us, is dating a friend of mine. It's certainly him, he's got a woman's name, the only man with that name I know of.

Is it possible...there's references to my uncle in here? Could my uncle have been the writer of this insane diary that details the hijinks of a bunch of boys almost three decades ago? My heart races at the possibilities. I flip through the pages, hoping to find something interesting, something that jumps off the pages.

I find one.

A ghost incident. It talks about a month of a certain year when things went strange, when the new assembly hall was being constructed and a worker got suddenly ill and had to be sent home. Three months later they contacted his home to discover he had never made it. Nobody knew where he had gone, or what had happened to him. It was around then that strange fog appeared in the middle pitch, which they called the great pitch, and you could hear loud shrieks at the early hours of the morning. The boys refused to go out alone in the evenings, even the brave ones easily egged on would not take up on the dare to go out. The pages claim even the staff and teachers were afraid of what was happening, the duty teachers and housemasters forbade anybody, including senior staff, to be out at night all by themselves. There was an unofficial curfew, housemasters told the prefects to hand out demerits to anybody seen in unexpected hours at night.

The incident went on for more than four months, until a few brave boys, helped by what the diary suggests must have been at least a few teachers and staff, explored the new construction area. There they apparently found belongings of the man who had gotten sick, and something seemed off. The boys reported it to the deputy headmistress, and the police were called. The army showed up with their dogs too...apparently in those days, the police didn't have the trained dogs but the army did, and the dogs sniffed around and began digging near this point several hundred feet behind the eastern staff village. The writer appears to have been in the scene and talks about it in the first person. As the dog dug into the ground, everybody got cold, they could almost see what was happening in front of their eyes. The teachers stood stuck to their positions, unsure what to do, when a soldier used a shovel to dig around and help the dog. There they found more clothes and belongings, when they dug later they found the body of the missing worker covered in a blue tarp covering, tightly would by jute rope.

The deputy headmistress finally came to her senses and told the boys to go away, reminded the teachers present of their duties. The school guards restricted the area, and very soon an army truck came to carry the body away. They ran some investigation, it was unclear what came off of it, but nobody was charged, I discover as I flip through the pages. They suspected one of the other workers, for money reasons or family issues, but no one else had heard anything about it, and the suspect had long ago left the project. They cleared up the area, and to drive away the 'evil spirits' in the area, planned on constructing a temple. The saraswati temple that stands there now, where I am currently as I read the diary.

I feel a prickly sensation on my neck. Could this be a coincidence, or has it been orchestrated by the spirit of the poor dead worker who wants justice. Should I be involved?