A possible concise summary is:
The text is a transcript of a YouTube video by Mr. Ballen, where he narrates three stories of people who went to places they shouldn't have and met tragic ends. The stories are about a woman who got stuck in an air duct, a diver who got crushed by a sunken boat, and a professor who got pinned by an elevator. The video also has a secret hidden in it that viewers can try to find and comment on. The narrator invites the viewers to like, subscribe and follow him on various social media platforms.
Some possible key facts extracted from the text are:
1. Jamie Miner was a 26 year old woman who went missing on May 23rd, 2011 after leaving her restaurant job in Austin, Texas.
2. She was found dead 37 days later inside an air duct of a nearby steakhouse that she used to work at.
3. She had LSD in her liver, which may have contributed to her erratic behavior and decision to climb into the air duct.
4. Tim was a 43 year old recreational diver who accepted a job to lift a sunken boat from a river in Florida in 2009.
5. He did not bring a dive partner and got trapped under the boat when it shifted and slid down an embankment.
6. He ran out of air and drowned before anyone noticed his diver down flag on the surface.
7. Carrie O'Connor was a 38 year old professor of French at Boston University who moved into an old apartment building in 2020.
8. She tried to fit a large package into an old elevator that had manual doors and sensors.
9. The package triggered the sensor that made the elevator move before she was ready and she fell into the narrow space between the elevator and the shaft wall.
10. She was crushed by the elevator as it moved down and died before the fire department arrived.