That investigation continues, he said.
"Quite honestly it has turned into a dual investigation," Thornton said. "He was found in an apparent suicide, but we have to investigate the body being discovered. Not only do we have to investigate the job-related situation but also his death."
Troopers went to Gall's home not only to check on him, but also to "retrieve information for the pending investigation," Thornton said.
The troopers, all of whom worked with Gall, were not the officers investigating his alleged professional misconduct, Thornton said.
"When he was relieved of duty he told them they could come to his house and retrieve information," Thornton said. The information would be turned over to different investigators, he said.
Gall was to officially be placed on administrative leave Wednesday, when State Police Col. David Lemmon signed off on the order, Thornton said.
State Police have been studying law enforcement suicides since Gonzales was found in July. He was the first trooper to commit suicide since 1999.
A report released late last year on Gonzales' suicide describes a man in emotional turmoil, one who had stopped taking his depression medication and who had suicidal thoughts at least a year before his death. It also describes a man unhappy with his job with the State Police and with his marriage.
"The department is still dealing with that," Thornton said of Gonzales' suicide. "Then we have this situation."
State Police announced in January that they were working to implement yearly behavioral health screenings for troopers, based on recommendations from a panel studying suicides among law enforcement.
To contact staff writer Gary Harki, use e-mail or call 348-5163.