The victim was attacked after getting off a bus in the early hours in November.
A 30-year-old woman died in the crash and the images appeared online just hours later.
PD Axle was knifed four times while helping officers arrest a man.
John Cooper, 82, has been delivering newspapers in his Derbyshire village since 1947.
Send us your questions about the area and we'll investigate.
Derby recover to beat Brentford in the Championship after falling behind to Henrik Dalsgaard's first-minute goal.
Burton boss Nigel Clough says it was right to call off Saturday's game at Barnsley as a matchday volunteer fell ill at Oakwell.
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