Austin Herbst and his mother were both charged in connection to Gary Herbst's death seven years after he was killed.
The man's remains were discovered four years after his death.
The majority of cases linked to the bars are young adults.
The remains were found in a wooded area of Wisconsin in 2017.
The early Monday crash temporarily closed Hwy. 13 near New Prague.
Operations have been moved to Belle Plain until the office reopens.
The 48-year-old was severely injured in the crash near New Prague.