13 year-old Casey Kearney died on Valentines' Day after she was stabbed in Elmfield Park in Doncaster.
Police want people who were seen near the park just after 1pm that day to contact them.
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Winter returns for the weekend and into next week JON MITCHELL has the details.
The footballer, who was jailed for five years, claims the 'previously unavailable' information could help clear his name.