"He would have probably shot anybody, the first one he come to, you know what I'm saying?" the elder Maynard told AP.
"I know he was off. I know he should have been in a hospital," the father said, adding that his son had previously been in an institution. He refused to elaborate, saying only that "the same problem was eating him again."
Rockel would not comment about whether Crum's death is connected to recent high-profile deaths of prosecutors and police from around the country.
That question would be left up to prosecutors, he said.
Crum's children, Julie and Bub, joined authorities Thursday afternoon on the courthouse steps in Williamson.
Hubbard asked everyone to pray for Crum's family and said the last 26 hours had been a difficult time for everyone in Mingo County.
Thornsbury said on Thursday night that Crum was aware of the dangers in his job and had received anonymous threats since he took office.
"A couple of ministers came to him just last week. One minister said he had a vision that harm was going to come his way," Thornsbury said. "He knew it. We talked about it 30 or 40 minutes before he died. He said that even if he got threats he wouldn't fret ... that he would fight back."
A memorial service and visitation will take place Saturday at 5 p.m. at Mingo Central High School in Delbarton. A funeral service will also be held at the school Sunday at 1 p.m.
"Sheriff Crum will receive all honors fitting of a law enforcement officer," Hubbard said.
Crum took office in January. He had campaigned on ridding the county of illegal drugs, particularly the illicit use of prescription painkillers. His crackdown on the drug trade in the county had been dubbed Operation Zero Tolerance.
Prosecutors say Crum liked to park his SUV on his lunch break near a shuttered "pill mill" every day.
Before Crum's death, Maynard had never faced criminal charges in West Virginia, according to county and state records. Baylous said State Police had responded to past incidents involving Maynard, but he declined to elaborate.
The mental health problems described by Maynard's father appear to stem from a lightning strike near a drilling rig at Drummond Co.'s Shoal Creek mine June 27, 2007. Tennis Maynard sued more than two-dozen people and companies in 2009 over injuries he said he suffered at the mine. A lightning strike sparked an explosion, which news reports at the time said injured six people.
The lawsuit doesn't detail the nature of his physical injuries or say exactly what happened. But Maynard claimed he endured "extreme, severe, prolonged emotional and mental pain and suffering," depression and post-traumatic stress disorder as a result of the incident.
The mine west of Birmingham, Ala., had been cited for a string of safety problems and had been shut down for six months the year before the lightning strike, when methane gas ignited and the mine flooded. The case had been put on hold, and a hearing was set for August.
The Associated Press and Gazette staff writer Rusty Marks contributed to this report. Reach Travis Crum at travis.c...@wvgazette.com or 304-348-5163.