Mark “Hondo” Henrickson Jr. Obituary, Shelby Man Dies After Tragic Swimming Pool Accident in Mason County, Michigan

The Shelby community is mourning the heartbreaking loss of Mark “Hondo” Henrickson Jr., a 43-year-old resident who died Tuesday afternoon following a tragic swimming pool accident in Summit Township. His unexpected passing has left family, friends, and loved ones grieving as they remember a life that was suddenly and tragically cut short.

According to the Mason County Sheriff’s Office, Henrickson was found unresponsive after entering a residential swimming pool at a home located in the 4800 block of West Birch Lane on Tuesday, July 14, 2026. Authorities said the incident occurred at approximately 4:20 p.m. when Henrickson entered the pool and failed to resurface.

Family members who were present quickly realized that something was wrong and immediately responded. They entered the pool to assist Henrickson and worked to bring him out of the water. With assistance from firefighters with the Riverton Township Fire Department, Henrickson was removed from the pool and lifesaving measures were started while emergency crews were contacted.

First responders continued efforts to provide medical assistance at the scene before Henrickson was transported by ambulance to Corewell Health Ludington Hospital. Medical personnel at the hospital continued attempts to revive him, but despite those efforts, he was later pronounced dead.

Authorities have stated that the official cause and manner of Henrickson’s death remain undetermined at this time. An autopsy has been ordered, and investigators are awaiting the results as part of the ongoing examination into the circumstances surrounding the incident.

The Mason County Sheriff’s Office continues to investigate the events leading up to Henrickson’s death. Officials have not reported any indication of foul play and have said the investigation remains focused on understanding what happened during the pool incident.

Multiple emergency agencies responded to assist during the incident, including deputies from the Mason County Sheriff’s Office, firefighters from the Riverton Township Fire Department, Life EMS personnel, and members of the Mason County Victims Services Unit. Their coordinated response provided critical assistance during a difficult and emotional situation for Henrickson’s family and those at the scene.

News of Mark “Hondo” Henrickson Jr.’s passing has brought deep sadness to the Shelby area and surrounding communities. Friends, neighbors, and those who knew him are mourning the sudden loss and reflecting on the memories they shared with him throughout his life.

While details about Henrickson’s personal life have not been widely released, those grieving his passing are remembering him as a valued member of the community whose loss has created a painful void. Family and friends are now coming together to support one another while awaiting additional information from authorities.

Tragic accidents involving swimming pools serve as a reminder of the importance of water safety and awareness, particularly during moments when unexpected emergencies can occur. However, for those who knew Henrickson, the focus remains on honoring his memory and supporting his loved ones during this difficult time.

As the investigation continues, the Shelby community stands alongside Henrickson’s family, offering condolences and support. Though his life ended unexpectedly, the memories, relationships, and moments he shared with others will continue to be treasured by those who knew and loved him.

Mark “Hondo” Henrickson Jr. will be remembered by his family, friends, and community as a person whose presence mattered and whose loss will be deeply felt.