A serial killer-obsessed woman has been jailed for life with a minimum term of 23 years for stabbing her on-off boyfriend to death.

Shay Groves, 27, was convicted at Winchester Crown Court of slitting the throat of Frankie Fitzgerald, 25, before stabbing him 17 times in the chest in July last year after trying to portray herself as his victim.

Groves had framed pictures of serial killers on her walls, collected books about gangsters, including the notorious prisoner Charles Bronson, and watched true crime documentaries.

In his sentencing remarks, Mr Justice Kerr told Groves that she had "blighted" the lives of Mr Fitzgerald's family "for decades to come".

However, he described the murder as a "crime of passion", adding that Groves was not "a cold-blooded murderer".

"You loved the man you killed, and you killed the man you loved.

"You are not a cold-blooded murderer, a crime of passion is not committed in cold blood," he added.

During the trial, it was said that Groves stabbed Mr Fitzgerald after discovering that he had been messaging a 13-year-old girl on Facebook.

However, Mr Justice Kerr told Groves: "You did not notice that Frankie had blocked her as soon as she had said she was 13.

"In fact, she was 17."

The pair shared a mutual interest in BDSM and a camera was set up in the defendant's bedroom at her home in Havant, Hampshire, to record them having sex.

During the trial, Steven Perian KC, prosecuting, said Groves used her knowledge from true crime shows to portray herself to her friend, Vicky Baitup, as a victim of Mr Fitzgerald's sexual violence.

She sent her friend videos of the pair having sex edited to appear as rape but the prosecution say the original footage showed that it was consensual sex.

Mr Perian said: "The Crown say that the defendant - by reading about and watching murder documentaries - was familiar with crime scenes, how to create a false narrative and how to set up a false alibi."

He added that she "deliberately set up a false narrative of being abused by Frankie Fitzgerald, a false alibi she sent to Vicky Baitup and was cleaning the crime scene having watched these documentaries".