Bartlomiej Kuczynski killed Jasmin and Natasha, aged 12 and eight, and their 36-year-old aunt, Kanticha Sukpengpanao, on January 19 last year. Afterwards, he took his own life.

His brother, Rafal Kuczynski, has now slammed the police handling of a phone call the 45-year-old made an hour before the deaths, calling it "a breach of the system".

A preliminary hearing, set up for the forthcoming inquests of the four family members who died, heard that the father called police and........

© Norwich Evening News