The four people found dead at a property near Norwich last week have been named by police.
Bartolmiej Kuczynski, 45, Kanticha Sukpengpanao, 36, Jasmin Kuczynska, 12, and Natasha Kuczynska, nine, were found after a member of the public raised concerns for their welfare.
An emergency 999 call was made by a man from the address in Costessey where the four people were found, but police failed to respond, it emerged on Sunday.
Officers discovered the bodies, including a father and two young girls, believed to be his daughters, more than an hour later at around 7.15am on Friday after forcing their way into the property in Allan Bedford Crescent, Costessey, near Norwich.
They had been alerted by a member of the public, who was concerned for the welfare of the people inside, shortly before 7am.
Post-mortem examinations carried out on Sunday found the woman died as a result of stab wounds to the neck while the man died as a result of a stab wound to the neck.
Post-mortem examinations for the two girls will be carried out tomorrow, police said.
Detectives confirmed on Sunday they were not looking for anyone else in connection with the incident.
Nina Crisan, whose son knew one of the girls, Jasmin, described her as a “very, very sweet girl”.
“She had very calm and cool energy, as my son would say,” she told Sky News on the weekend. “She was just a lovely, lovely, lovely kid.”
She said the incident had come as an “absolute shock” to those who lived in the area.
“[It’s just] absolute shock, absolute shock and devastation.
“This is a really close community. And we all, even if we don’t know each other directly, sort of know each other through, the children, or through dog walking.”
Norfolk Police has referred itself to the Independent Office of Police Conduct (IOPC) watchdog in relation to the 6am call, “to which police resources were not deployed”.
Police had already contacted the IOPC over the incident because officers attended the property on 14 December last year in relation to a missing person inquiry.
