Police say the females were questioned on suspicion of assisting an offender after a man was stabbed.
Two of the animals survived after they were found emaciated but a third died.
The man was left dangling from the cables for 45 minutes before the emergency services were called.
Rural primary with just 25 pupils told it is likely to be closed
Cash-strapped authority also sold its HQ in April
Northampton Town central defender Leon Barnett agrees a new one-year contract with the Cobblers.
Wasps sign England international prop Kieran Brookes after he opted to leave Northampton Saints this summer.
Northampton Chronicle and Echo
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