Mason T. Sauseda was 19 when his body was found on April 9, 2021, at the Theodore Marsh preserve in Crest Hill. Two people walking a path west of Gaylord Road and north of Theodore Street discovered him. The Will County Coroner identified Mason Sauseda and reported a gunshot wound to the head; the final manner and cause were pending further police and toxicology review at the time.

The Forest Preserve District of Will County Police Department led the investigation into the circumstances of his death. No arrests or suspects were reported in the initial stages, and there were no public updates about charges or litigation. The case remains open and investigators continue to seek information that could help resolve what happened.

If anyone has information about Mason Sauseda, his movements, or activity near Theodore Marsh on or before April 9, 2021, please share what you know.