An investigation is under way after a 42-year-old man was shot dead by police during a seven-hour armed siege at his village home.
Alistair Bell was gunned down by police marksmen in the West Yorkshire village of Kirkheaton, near Huddersfield, after shooting one Pc and opening fire on his West Yorkshire Police colleagues.
The incident unfolded when uniformed police arrived at the loner's home in Cockley Hill Lane at about 10pm on Monday to arrest him on suspicious of making threats.
Police said he shot one unarmed male officer on the doorstep who was taken to hospital with minor injuries.
Bell then moved back into the end-terrace house and continued to fire throughout the night as police negotiators tried to coax him out.
Nearby residents said the incident ended at 5.30am when they heard one shot followed a moment later by three louder shots in quick succession.
The Independent Police Complaints Commission (IPCC) is investigating the incident and probing the actions of West Yorkshire Police.
Eyewitness Mark Blezzard, 30, who lives opposite Bell, said he heard around eight or nine shots during the night-long stand-off. He said: "Loads of police turned up - some carrying machine guns. They lit the house up like a Christmas tree and the armed police were behind hedges."
West Yorkshire Police said they tried to resolve the situation peacefully although shots were "continually" fired at officers.
Officers initially attended the address to arrest Bell on suspicion of making threats towards another man at a nearby property earlier in the day, a spokesman added.