The homeless woman charged with stabbing a mother inside a bathroom at Macy's in NYC has a history of mental illness and claimed voices told her she had to kill someone or be killed.

A tourist was stabbed multiple times in a bathroom at New York City's Macy's Herald Square while changing her baby. Police said a homeless woman was arrested and is facing charges.

The FBI is investigating more than 350 subjects in sweeping probe of "764," an online network targeting minors with violence and sexual exploitation.

Federal authorities launch first-of-its-kind task force to combat transnational organized crime by bringing together state, local and federal agencies.