At the hospital, responding officers secured the handgun and Sitsch was taken through the emergency doors, where he was immediately treated for a self-inflicted gun shot wound to the chest. He died a few minutes later.
There was no threat to hospital patients, visitors or staff during the incident, said LRH spokeswoman Gail Clark.
Based on the information collected, it appears Sitsch only intended to harm himself, said Smith.
Found on Sitsch were explicit directions and information concerning his wills and last wishes that give insight into why he decided to take his own life, said Smith.
Smith said he doesn't know why Sitsch chose that particular location to shoot himself, but said one statement found on him pertained to a wish of having his organs harvested.
Sitsch, 55, had several restraining order violations against him in both Vermont and New Hampshire.
In 2013, he was charged in federal court for violating the order by crossing the state line into Vermont to visit the St. Johnsbury home of his wife, Barbara Sitsch.
On Monday, he had been scheduled to make a change of plea in a case at Caledonia District Court, but did not show up to the 9 a.m. hearing.
On Sunday, police received a call from Sitsch's attorney, David Sleigh, saying Sitsch might be mentally unstable. That information was passed to state police in New Hampshire for a welfare check, said Smith.
The details of that check were not immediately available.