A Bronx family is searching for answers after their teenage son was found dead in Illinois over the weekend.

Brandon Landau, 18, was a college freshman at Illinois Wesleyan University. Investigators say his body was discovered lying in a stream in White Pines State Park Sunday morning after attending a nearby party.

Officials say the exact cause of death has yet to be determined, and they are waiting for results of a toxicology report.

Grief counselors are on hand at Landau's alma mater, Riverdale Kingsbridge Academy.