Nursery nurse Kirsty Treloar, 20, was stabbed to death at her home in Haggerston, east London, at around 7am on January 2, 2012.
The young mother, who had a one month-old daughter, was then dragged into the boot of a car and driven off.
Detectives arrived at the house in Brownlow Road ten minutes later to find her brother Dean, 22, with three stab wounds to the chest and sister Gemma, 24, with two stab wounds to the arm. The baby was unharmed but was taken to hospital as a precaution.
Miss Treloar was found dead in an abandoned Fiat Stilo in Ryder Mews, Homerton, at 8.30am. She had suffered 29 stab wounds.
Her partner Myles Williams, 19 [25/11/92], of Pond Farm Estate, Hackney, was charged with murder and two counts of attempted murder.
Williams went on trial at the Old Bailey on September 10, 2012. The prosecution case is that he was 'violent and controlling' towards his partner, who gave birth to his daughter in December 2011.
A few days before the killing he was charged with threatening behaviour towards her and banned from contacting her as part of his bail conditions.
On New Year's Day he sent her a text making a resolution not to hit her again: "Okay wer all gud now and my new yrs ressy is that i aint going to hit u again. I won't hit u 4 this yr the yr after that the next yr after that on shans life. Thats hw real it is but I wont u to swear on shans life u wont piss me off and do things to make me angry. Love you 4 eva mwha x."
But the very next day he flew into a rage when she refused to see him. He broke into her house through the kitchen window and kicked his way into her bedroom before launching the attack.
Dean tried to fight him off with a weightlifting bar but was stabbed in the chest. Gemma attempted to stop him dragging Kirsty out the house until Kirsty told her: 'Gem, let me go.'
As Williams took the victim out the house he told a bystander: 'She needs to die.'
On September 21, 2012, Williams was convicted of murder and two counts of wounding with intent. He was jailed for life with a minimum of 28 years on November 20. The judge Nicholas Cooke QC praised Kirsty's 'courage of the highest order' for trying to protect her family from harm.
Judge Cook told Williams: 'You represent an exceptional danger to any future female partner, both now and in the future.
'This was a fatal attack in the presence of the deceased and your own 26 day-old child.
That baby was left covered in blood, probably her mother's blood. You dragged your dying victim out of the house. You dumped Kirsty's body in a dirty yard by a rubbish bin.'
The judge said leaving Kirsty in the bin area 'heaped humiliation on brutality.'
'I have to pass a sentence which reflects the public revulsion at this brutal crime,' he added.
DCI Andy Yeats of the Homicide & Serious Crime Command said: "This was an appalling and violent attack by an individual with a propensity for violence towards women.
"Kirsty's murder was the result of her simply not wishing to see him that day. Williams's response to this was savage and extreme, not only towards Kirsty but towards members of Kirsty's family who tried to save her life."
Kirsty's sister, Gemma Treloar, on behalf of all the family said: "The last eleven months have been extremely difficult and tortuously painful. We have been ripped apart inside.
"We feel we would not have got through it without the love and support of each other as well as a handful of our family and friends and others, including the victim support and the police.
"We would especially like to thank the police and the prosecution team at the Old Bailey in helping to bring Kirsty's killer to justice.
"Nothing will ever ease the pain of losing Kirsty but a little bit of justice has finally been served and we hope that Kirsty can now rest in peace and we can begin to grieve properly. We will forever love and miss you Kirsty."
Tributes were left on the Facebook page R.I.P Kirsty Treloar