Siegel mugshot, 1928. Benjamin "Bugsy" Siegel (February 28, 1906 - June 20, 1947) was a Jewish American mobster, described as handsome and charismatic. He was influential within the Jewish mob and also held significant influence within the Mafia and National Crime Syndicate. He was one of the founders and leaders of Murder, Incorporated and became a bootlegger during Prohibition. After Prohibition was repealed, he turned to gambling. His time as a mobster was mainly as a hitman and muscle, as he was noted for his prowess with guns and violence. He traveled to Las Vegas, Nevada where he handled and financed some of the original casinos. He assisted developer William Wilkerson's Flamingo Hotel after Wilkerson ran out of funds. The Flamingo opened on December 26, 1946 to poor reception and soon closed. It reopened in March 1947 with a finished hotel. Three months later, on June 20, 1947, Siegel was shot dead at the Beverly Hills home of his girlfriend, Virginia Hill.