Koci Selamaj, a garage worker, who attacked primary school teacher Sabina Nessa as she walked through a London park has been jailed for life.
Ms Nessa appeared "oblivious" as Koci Selamaj ran up behind her before he struck her 34 times over the head with a metal traffic triangle on 17 September last year, a court heard on Thursday.
The 28-year-old woman had raised concerns about walking in Cator Park after dark but likely decided to on the day of her murder after running late to meet a friend, prosecutors believe.
The sentencing of Selamaj continued at the Old Bailey on Friday, where the 36-year-old was jailed for life with a minimum term of 36 years.
The Albanian national, from Eastbourne, was arrested in the East Sussex seaside town and later pleaded guilty to her murder.
At the hearing on Thursday, prosecutor Alison Morgan QC said Selamaj had been violent towards his ex-partner in the past, including throttling her.
On the day of the killing Selamaj drove up to London and entered Cator Park just after 8pm, lying in wait for half an hour before Ms Nessa arrived en route to a bar where she was meant to meet a friend.
In CCTV footage shown in court on Thursday, Koci Salamaj was seen walking along the path with his hood up and the traffic sign in his hand.
She is "oblivious to him behind her" at this point, the court heard.
He then runs behind her and starts hitting her repeatedly with the traffic sign.
Selamaj was then seen carrying Ms Nessa, who appeared to be unconscious by that point, up a bank and out of sight.
Ms Morgan invited the court to conclude there was a sexual motive for the killing, even though there was no "positive" evidence of a sexual assault.
Ms Nessa's sister Jebina Yasmin Islam broke down as she gave a moving impact statement to the court.
"She had every right to be walking down the path and enjoying herself," she said.
"She had the right to feel safe."
Selamaj came to the UK roughly seven years ago after leaving school at 12 with no qualifications, his defence barrister said.
The defence pointed out he had pleaded guilty to murder rather than letting the case go to trial, arguing it should be considered in sentencing.
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