The United States’ new ambassador to Russia, Lynne Tracy, has arrived in Moscow, the U.S. embassy said Thursday.

Authorities say the 72-year-old gunman who sprayed bullets into a Southern California ballroom dance hall, killing 11 people, had no known connection with the victims and investigators are still trying to determine a motive for the massacre.

Tennessee officials have conceded two of the people most responsible for overseeing the state’s lethal injection drugs testified incorrectly under oath that they were testing the chemicals for bacterial contamination.

A man suspected of being the “Pillowcase Rapist” who sexually assaulted dozens of women in Florida in the 1980s was convicted on Wednesday in one of the attacks, prosecutors said.

A Hawaii man who spent more than 20 years in prison for the murder and rape of a tourist has been released because of new evidence.

A former Chicago graduate student was sentenced to eight years in prison Wednesday for spying for the Chinese government by gathering information on scientists and engineers in the U.S. with knowledge about aerospace and satellite technology.

The police chief in the California city where 20 people were shot at a ballroom dance hall, 11 fatally, has defended his decision not to warn the public for hours that a killer was on the loose.

Officials say a 32—year-old mother in Massachusetts is expected to be charged in the killing of her two children and the injuring of her infant son.

A Minnesota woman has admitted to leaving her newborn baby to die on the banks of the Mississippi River in 2003.

Two people who were allegedly members of a white supremacist prison gang were sentenced Wednesday to 10 years in prison for their role in the attempted killing of an inmate at a Mississippi prison.