The murder of 23-year-old Ukrainian refugee Iryna Zarutska on a train in North Carolina last month has sparked ongoing concerns about crime in the US.
A video released on Friday by the Charlotte Area Transit System shows Ms Zarutska seated on a train when she is stabbed from behind several times in what appears to be a random attack.
The suspect, 34-year-old Decarlos Brown Jr, is charged with first-degree murder. The graphic video has circulated on social media, attracting the attention of influencers, commentators and politicians.
Charlotte's mayor on Monday called the killing "a tragic failure by the courts and magistrates". She vowed to deploy more officers to public transit sites.
Fatal stabbing of Ukrainian refugee in North Carolina ignites crime debate
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