Police have released this photo of Ian John McLoughlin, who is wanted in connection with the death of Graham Buck
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Hertfordshire murder: Man killed 'defending neighbour'

A "dangerous" man being sought by police investigating the death of a man stabbed protecting a neighbour was a murderer on day release.

Ian John McLoughlin, 55, is wanted over the death of Graham Buck, 66, in a village in Hertfordshire on Saturday.

Hertfordshire Police said Mr Buck died while intervening in a robbery at his neighbour's home.

McLoughlin had served 22 years of a minimum 25-year sentence for murder, police said.

Andy Moore reports.