It's a mystery that captured national attention. A man's body was found in a barrel at Lake Mead, shot in the head, and thrown in the water as much as 50 years ago. Before investigators can even begin to search for a suspect, they need to identify the victim—something that's been a challenge in this case. Now, newly released photographs shared first with News 3 might help. #LasVegas MORE: News3LV.com | KSNV News 3, Las Vegas

Today in STEM History - October 9, 1936 Boulder Dam, now the Hoover Dam on Colorado River, began generating electricity. This engineering marvel also alleviated water shortages in the arid southwestern United States transforming the region's landscape and economy. It exemplifies the convergence of STEM disciplines in civil engineering, hydrology, and electrical engineering. Bureau of Reclamation U.S. Army Corps of Engineers, Headquarters Bechtel Corporation American Society of Civil Engineers Ed

The Hoover Dam: A Monument to American Progress