A man who was found dead in a house alongside the bodies of his two daughters and sister-in-law had been escorted to hospital by police weeks before, it has been confirmed.
Bartlomiej Kuczynski, 45, was found with a stab wound to his neck in Costessey, near Norwich, last Friday. His death is not being treated as suspicious, police said.
Kanticha Sukpengpanao, 36, Jasmin Kuczynska, 12, and Natasha Kuczynska, eight, were also discovered at the property with stab wounds to their necks. Their deaths are being treated as murder by police.
It has since emerged that Kuczynski was taken to the emergency department at Norfolk and Norwich university hospital by police on 14 December, the same day that a missing person report was filed from his home address.
He then left the unit after he was assessed as having “mental capacity”, the hospital said in a statement.
“We can confirm that the patient was taken to the emergency department by police on 14 December,” a spokesperson for the hospital said.
“Following a comprehensive clinical assessment, the patient was assessed as having mental capacity and he left the unit before being reviewed again by the team.”
The four bodies were discovered by police after a call from a member of the public last Friday morning. Officers forced their way into the home at 7.15am.
Detectives said the man and two children lived at the address, but that the woman was visiting and lived elsewhere. A man had called 999 from the property at about 6am that morning.
The incident has been referred to the Independent Office for Police Conduct (IOPC) due to the first 999 call, which did not result in a deployment of officers, and over police contact at the address on 14 December, relating to the missing person inquiry.
On Tuesday, an acting IOPC regional director, Charmaine Arbouin, said: “Norfolk constabulary established that the man had made a 999 call to the force shortly before 6am on 19 January.
“During that call, the man expressed concerns for his own mental state, saying he was confused. He was advised to seek medical advice and police did not attend.
“At around 7am, the force received a call from a dog walker concerned for the welfare of those within the home. Officers attended shortly after and, tragically, found the man, a woman and two children dead.
“Following a mandatory referral from the force, we have decided to investigate and will be examining if the force’s handling of the contact they had with the man was appropriate and in line with force policy, training and procedures.”
PA Media contributed to this report