Ravnsborg is serving his first term as attorney general after being elected in 2018.
"I have full confidence in the thoroughness of the job being done by the South Dakota Highway Patrol and the North Dakota Bureau of Criminal Investigation which I believe will answer most if not all questions that the people of South Dakota may have".
Jason Ravnsborg, South Dakota attorney general, speaks during a news conference outside the Supreme Court in Washington, D.C., U.S., on Monday, Sept. 9, 2019.
The man who was killed has been identified as Joseph Boever, 55.
His wife, Jennifer Boever, said she was confused by the amount of time between the accident and her husband being identified.
Ravnsborg's chief of staff Timothy Bormann called the episode "a tragic accident" in a statement released Monday.
Tim Bormann, Ravnsborg's spokesman, told the Rapid City Journal that Ravnsborg was not injured in the crash.
After the collision, Ravnsborg, 44, said in a statement released late Monday night that he stopped his auto, phoned the sheriff and got out to survey the damage.
Boever's family members said earlier Monday they felt frustrated and suspicious with the investigation, especially after investigators took almost 22 hours to allow them to identify Boever's body. Boever told his cousin that he struck the bale of hay after going off the road while reaching for tobacco. Boever wasn't home when Nemec arrived.
'My worst fear is that they're trying to get ducks in a row to absolve the attorney general of any wrongdoing, ' Nemec told Keloland.
Nick and Victor Nemec were called to identify Boever's body Sunday evening. Nearly immediately, Ravnsborg's office released a statement saying he was uninjured in the crash and was cooperating with the investigation. He did call 911 but lied to them about what happened.
According to CBS News, "Ravnsborg has received six traffic tickets for speeding in South Dakota over the last six years".
He was also cited for a seat belt violation in 2017 and paid a $25 fine, according to state records.