Sioux Falls Driver Pleaded Not Guilty in Fatal Crash
Mel Ruano Jr. faces vehicular homicide charges after a September collision claimed the life of a motorcyclist.
Updated on Oct. 5, 2026 in Financial Crime

Mel Ruano Jr. has entered a not guilty plea regarding vehicular homicide and driving while intoxicated charges. The legal proceedings follow a fatal September 15 collision that resulted in the death of 39-year-old Jonathan Baumgartner.
Why it matters
The case highlights the severe legal consequences of driving under the influence, as the defendant faces significant prison time and financial penalties if convicted. Prosecutors are moving forward with the case following the victim's death at a local hospital.
A judge has maintained a $100,000 cash bond for the defendant following his not guilty plea. The court has tentatively set a jury trial for December 28 to address the homicide and intoxication charges.
The players
Mel Ruano Jr.
He is the 27-year-old defendant currently facing charges of vehicular homicide and driving while intoxicated.
Jonathan Baumgartner
He was a 39-year-old motorcyclist who died following the collision with the defendant.
The details
On September 15, Mel Ruano Jr. turned his vehicle left in front of Jonathan Baumgartner, who was riding a motorcycle at River Boulevard and 17th Street. The motorcyclist suffered a skull fracture and required surgery before dying at Avera McKennan hospital on September 21, with investigators noting the defendant had a blood alcohol content of .132.
Timeline
September 15: The vehicle crash occurred on River Boulevard.
September 21: Victim Jonathan Baumgartner died at Avera McKennan hospital.
October 5: Mel Ruano Jr. pleaded not guilty in court.
December 28: A jury trial is tentatively scheduled.
Legal Context
This case reflects the state's rigorous application of South Dakota's vehicular homicide statutes when alcohol consumption is present during a fatal incident. Similar prosecutions in the jurisdiction have historically utilized blood alcohol testing and crash scene admissions to establish criminal liability.
The case highlights the dangers posed to local motorists and underscores the role of law enforcement in maintaining road safety on residential streets like River Boulevard. Residents are reminded of the strict enforcement of driving while intoxicated laws in Sioux Falls.
The takeaway
Driving under the influence carries life-altering consequences for both the victims and the perpetrators. Drivers are urged to prioritize sobriety behind the wheel to prevent further tragedies in the community.
Further reading
For more information on legal proceedings in the area, visit Financial Crime.
Source note: This article includes information reported by Sioux Falls Live.










