18-Year-Old Johnston HS Basketball Player Jok Mayom Jr Dies In Grimes Rollover Accident Leaving Parents Devastated

Investigators are still working to determine the cause of the accident.

July 1, 2026

This article was last updated by Manoj Gadtaula on July 1, 2026

Authorities confirm that Jok Mayom Jr. died from injuries sustained in a single-vehicle crash.

The Grimes community is mourning the tragic loss of 18-year-old Jok Mayom Jr., who died from injuries sustained in a rollover car accident on June 27, 2026.

According to the Polk County Sheriff’s Office, the crash in the 700 block of NE Edgewood Drive in Grimes shortly before 5:30 p.m.

Deputies and emergency crews rushed to the scene after receiving reports of a single-vehicle rollover.

When they arrived, they discovered that Mayom was the sole occupant of the vehicle. He had suffered severe injuries in the crash.

First responders transported him to a local hospital, where he remained in critical condition over the weekend.

Despite the efforts of medical staff, Mayom succumbed to his injuries on Monday, June 30.

The Sheriff’s Office publicly confirmed his passing later that day, expressing condolences to his family and loved ones.

Authorities have not yet determined the cause of the accident.

Investigators are actively gathering witness statements and analyzing evidence from the crash site to piece together what led to the tragic incident.

The Polk County Sheriff’s Office has assured the public that it will release additional information once its investigation is complete.

The death of Jok Mayom Jr. has left the Grimes community in shock.

Friends, family members, and neighbors have shared their grief over the sudden loss of the young man, whose life was cut short just as he was stepping into adulthood.

Funeral services for Mayom are currently pending. His family has asked for privacy as they grieve and make arrangements.

The incident serves as a somber reminder of how quickly life can change and highlights the importance of road safety for young drivers.

Rest In Peace, Jok Mayom Jr.

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