Jurijus Kadamovas (born October 22, 1966) and Iouri Gherman Mikhel (born April 9, 1965) are Soviet-born American serial killers who immigrated to the United States from Lithuania and Russia, respectively. They were convicted of kidnapping and murdering five people. The kidnappings occurred over a four-month period beginning in late 2001, in which the kidnappers demanded ransom.

Documents related to the case allege the crew demanded a total of more than $5.5 million from relatives and associates, and received more than $1 million from victim's relatives. Prosecutors said the victims were killed regardless of whether the ransoms were paid. The bodies were tied with weights, and dumped in the New Melones Lake near Yosemite National Park. Federal prosecutors sought the death penalty under murder during a hostage-taking, (18 U.S.C. 1203), a federal crime.

On March 12, 2007, Kadamovas and Mikhel were sentenced to death. Four others were sentenced for participating in the plot, receiving sentences ranging from 11 years to life imprisonment. Kadamovas and Mikhel remained on federal death row until their sentences were commuted to life without parole by President Joe Biden on December 23, 2024.