Found this in a NewYorker article:
"He told me that his father, John Sullivan, Sr., is a retired Army lieutenant colonel who now works in the freight-shipping industry, and that his mother, Lisa, is a homemaker."
https://www.newyorker.com/news/us-journal/when-reporting-becomes-a-defense-for-rioting
And then this:
"Sullivan retired from active duty 1 September 2000 and is working for Northrop Grumman.
He is married to Lisa Marie Richan and they have three children: John Earle, James Owen, and Peter Joseph. He and his wife are converts to the Church of Jesus Christ of Latter-day Saints."
https://marriott.byu.edu/army/alumni/past-faculty/
Edit:
From The Salt Lake Tribune:
"Sullivan was raised in a military family. His father was a lieutenant colonel, a devout believer in The Church of Jesus Christ of Latter-day Saints, who raised his boys in a conservative household and taught them to love the Constitution, his brother James, said on the Tooele Happy Hour podcast."
https://www.sltrib.com/news/politics/2021/01/16/robert-gehrke-what-we/
Found this in a NewYorker article:
"He told me that his father, John Sullivan, Sr., is a retired Army lieutenant colonel who now works in the freight-shipping industry, and that his mother, Lisa, is a homemaker."
https://www.newyorker.com/news/us-journal/when-reporting-becomes-a-defense-for-rioting
And then this:
"Sullivan retired from active duty 1 September 2000 and is working for Northrop Grumman.
He is married to Lisa Marie Richan and they have three children: John Earle, James Owen, and Peter Joseph. He and his wife are converts to the Church of Jesus Christ of Latter-day Saints."