"Enter if you have the balls," the 70-year-old hunter reportedly told police. The ensuing firefight killed the man and seriously injured one police officer.
Police were called to the house, in the Aragon town of Ejea de los Caballeros, on the evening of Wednesday April 15th, after the man reportedly shot his daughter's boyfriend, who is currently in a serious condition in hospital.
The man, named José Luis according to Spanish daily El País, began firing at Civil Guard police when they arrived on the scene at 7:27pm on Wednesday.
Police repeatedly attempted to negotiate with the man, who proved unwilling to collaborate with officers, according to police sources.
The Civil Guard’s Special Intervention Unit entered the house at around 8am on Thursday morning. After an exchange of shots, José Luis was killed.
The 50-year-old boyfriend of José Luis' daughter is currently in a serious condition in the intensive care unit of the Hospital Clínico in Zaragoza after having been shot twice in the shoulder.
Two police officers are also in hospital, with one who took part in the raid on the house seriously injured.
Locals in the town, which has around 10,000 inhabitants, told El País that the man has three daughters and is usually "calm", keeping to himself.