Jaden Lee Stroobant, the man who killed and sexually violated an Auckland woman in her home, had been released from prison just over a month before the murder.
Cun Xiu Tian, 69, died at her Te Atatu home on January 15 last year. Stroobant was her next door neighbour.
On Wednesday, he admitted to the murder and two charges of sexual violation on the first day of his trial.
But it's been revealed Stroobant had only been out of prison for 38 days before the murder took place.
He had been jailed for a number of charges including burglary in mid-2005, NZME reports. He was freed on December 8.
Stroobant had been living at a Te Atatu boarding house, but had moved to the property next to Ms Tian shortly before the murder.
On the morning of her murder, Ms Tian had been in the garden while home alone. She lived there with her daughter and son-in-law.
Stroobant came onto her property, grabbed her and began sexually violating her.
He then hit her so hard she fell to the ground, before stomping on her head and causing the fatal injuries.
The summary of facts says Stroobant then carried out a sexual assault on Ms Tian while she was still alive.
Stroobant then tried to cover his involvement in the crime using cleaning products, and also stole an iPad, watch and Chinese currency from Ms Tian's home.
Justice Graham Lang agreed to suppress the details of the sexual violation until a substantive hearing could be held into the matter.
His lawyer, Emma Priest, wants to keep the facts suppressed for good, saying it could endanger her client in prison.
He's due to be sentenced on March 13.