A knifeman who killed one person and injured seven more during a 90-minute attack in Birmingham confronted his first victim "about chatting to a girl", according to a witness.
With no arrests made, a massive manhunt is underway for a lone suspect who went on the rampage in Birmingham city centre in the early hours of Sunday morning.
West Midlands Police declared a major incident after being called to reports of a stabbing just after midnight on Sunday, before more calls came in of further attacks.
Detectives have now released CCTV footage of a man they want to speak to in connection with the incident with "significant resources" having been deployed.
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