Jazz Guitarist Jack Grassel Died in Car Collision
Renowned Milwaukee musician Jack Grassel and an 83-year-old woman passed away after a vehicle collision.
Updated on Sept. 19, 2026 in Jazz
Jazz guitarist Jack Grassel, 77, died following a car crash in which he crossed the centerline and struck another vehicle. The 83-year-old driver of the second vehicle involved in the collision also passed away.
Why it matters
The tragedy claims the life of a longtime figure in the music community who was known for performing across Wisconsin. Grassel had previously faced health challenges including a stroke in January 2025.
Jack Grassel was 77 years old at the time of the collision, while the driver of the second vehicle was 83 years old. The accident occurred after Grassel suffered a medical event, having previously experienced a stroke in January 2025.
The players
Jack Grassel
He was a respected jazz guitarist and fixture in the Wisconsin music scene who performed for decades.
Jill Jensen
She is a musician who performed alongside Jack Grassel for many years.
The details
Grassel was reportedly unconscious at the time of the crash after suffering a medical event behind the wheel. His vehicle crossed the centerline of the road, resulting in a fatal collision with another car.
Timeline
January 2025: Jack Grassel suffered a stroke.
September 2026: Jack Grassel died following a car collision.
Industry Dynamics
The sudden loss of a long-standing performer significantly impacts the local Milwaukee jazz scene, which relies on legacy artists to anchor regional venues. This event highlights the challenges faced by veteran musicians balancing demanding performance schedules with evolving health concerns.
Fans of the long-standing musical partnership between Grassel and Jill Jensen will no longer be able to see them perform together. Residents may experience temporary road closures or traffic disruptions in the vicinity of the accident site.
The takeaway
This incident serves as a reminder of the importance of monitoring health conditions for those who drive regularly. It also marks the end of a notable musical collaboration that spanned decades across the state.
Further reading
For more on the local music scene, visit Milwaukee Jazz.
Source note: This article includes information reported by Oregon Live.
