In Nevada, the level of Lake Mead, which is the largest reservoir in the country, is falling in an unprecedented manner. The remains of at least three people have been recovered since the shoaling.

The last human remains found on Lake Mead more than three months ago have been identified as Thomas Erndt, who probably drowned two decades ago, CNN reports, citing a statement from Nevada authorities.

The man was identified through investigative information, DNA analysis and reports of the original incident.

Authorities said the 42-year-old Las Vegas man drowned Aug. 2, 2002, although the official cause and manner of death was not determined Wednesday.

Among other remains found in the lake is a body in a rusted barrel with a gunshot wound. The case is being investigated as a homicide. The coroner believes they belong to Hemen Harbor Doe, who died in the mid-1970s and early 1980s.

Fragmentary human remains have also been brought to a local beach three times, and it is not yet possible to say whether they belong to one person or more than one person. The coroner is working with them. The results will be announced later.