Four men are filmed fleeing the shop and driving away.
Brendan Gaughan, 32, admits mutilating and killing seven cats, and admits a string of arson attacks.
Two people have appeared in court in connection with Simon Mushonga's death.
Comic book legend's first screenplay set in Northampton
BBC Music reveals its annual Sound Of list, which highlights the musicians who'll make waves.
Timisoara Saracens host Northampton in Saturday's European Rugby Challenge Cup tie at Dan Paltinisanu Stadium (12:30 GMT).
Northampton Chronicle and Echo
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