Markings are seen on the ground following a crash reconstruction and investigation conducted by the Lake County Major Crash Assistance Team on October 9, 2025, following a single-vehicle motorcycle crash near the Grayslake Golf Course, 2150 North Drury Lane in Grayslake, that left the victim in critical condition before he died two weeks later in the hospital. | Photo: Joe Shuman/J. Shuman Photography (2025)

A 19-year-old man has died in the hospital two weeks after he crashed his motorcycle in Grayslake where he was found alive but critically injured almost 16 hours after it happened.

A coroner’s investigation showed Nathan Levandowski, 19, of Lake Villa, died as a result of blunt force injuries from a vehicle crash, according to Lake County Coroner Jennifer Banek.

The Grayslake Fire Protection District and Grayslake Police Department responded around 7 a.m. on October 9 to the area of the Grayslake Golf Course, 2150 North Drury Lane, for a report of a crash with injuries.

Fire crews arrived and reported finding a motorcyclist down off of the roadway.

Grayslake Police Chief Jeff Myhra said officers determined that the crash happened around 3:30 p.m. on October 8.

Markings are seen on the ground following a crash reconstruction and investigation conducted by the Lake County Major Crash Assistance Team on October 9, 2025, following a single-vehicle motorcycle crash near the Grayslake Golf Course, 2150 North Drury Lane in Grayslake, that left the victim in critical condition before he died two weeks later in the hospital. | Photo: Joe Shuman/J. Shuman Photography (2025)

Levandowski was not found until the morning of October 9, approximately 16 hours later. His family had filed a missing person report the prior day.

[Suggested Article]  18-year-old Waukegan man dies after being ejected in motorcycle crash, struck by semi-truck near O'Hare Airport

He was located based on a ping from his cell phone that was conducted by his father, Myhra said.

The crash, which had no witnesses, occurred at the curve on Drury Lane south of the golf course.

The motorcycle, a Kawasaki 650 sport bike, and Levandowski left the roadway far enough that they were not visible to anyone driving along the road, Myhra said.

Myhra said Levandowski was wearing all of the appropriate safety equipment but still suffered critical injuries.

Markings are seen on the ground following a crash reconstruction and investigation conducted by the Lake County Major Crash Assistance Team on October 9, 2025, following a single-vehicle motorcycle crash near the Grayslake Golf Course, 2150 North Drury Lane in Grayslake, that left the victim in critical condition before he died two weeks later in the hospital. | Photo: Joe Shuman/J. Shuman Photography (2025)

Paramedics transported him to Advocate Condell Medical Center in Libertyville where he remained until he died on Wednesday.

The Kawasaki was traveling eastbound on Drury Lane and failed to navigate the curve for unknown reasons.

The motorcycle struck the curb and exited the roadway where Levandowski and the motorcycle came to rest approximately 40 feet east of the road.

[Suggested Article]  Two men who claimed they were shot at charged with recklessly shooting guns at homes, vehicles, near Grayslake

Myhra said there is no indication that any other vehicles were involved in the crash.

The Lake County Major Crash Assistance Team (MCAT) responded to assist the Grayslake Police Department with the investigation.

Drury Lane was shut down for several hours during the crash investigation.