JEALOUS Will Blencowe stabbed Connor Tremble 15 times when he found out he was dating his former girlfriend Aimee Harrison, the court heard.
Blencowe had split up with 20-year-old Miss Harrison in September last year after four years together.
She told the trial Blencowe “was really controlling, we would fall out quite a lot”.
She added: “When we would argue he would be quite abusive – he would spit on my face, stuff like that, and just be really nasty.
“I wasn’t an angel, but he was so jealous and controlling.”
Miss Harrison also told the trial Blencowe called her on the day of the murder. She said: “He said ‘I know you are seeing someone called Connor’. I asked him how he knew but he wouldn’t tell me.
“I asked him what he was going to do about it, he said ‘nothing, I don’t want to ruin my own life’.
“He acted like nothing was wrong and he was absolutely fine and happy in his new relationship.”
She said she told Connor “I understand if you don’t want anything to do with me after Will finding out”.
She added: “He said ‘no don’t be silly’, and said he still wanted to see me.”
That was the last time she spoke to Connor.
Aimee Harrison with Connor Tremble
Miss Harrison also told the jury Blencowe kept knives and used to play with them in front of the mirror.
She said after Blencowe ended their relationship she was briefly “intimate” with a man called Ben Harris – leading to Blencowe attacking him at the Bitter and Twisted pub in Chipping Norton in October last year.
She told jurors: “Looking back now I wish I hadn’t got into the relationship [with Blencowe], it wasn’t a normal relationship.”
Blencowe claimed Aimee had also been abusive to him and he enjoyed that part of their relationship.
- Do you want alerts delivered straight to your phone via our WhatsApp service? Text NEWS or SPORT or NEWS AND SPORT, depending on which services you want, and your full name to 07767 417704. Save our number into your phone's contacts as Oxford Mail WhatsApp and ensure you have WhatsApp installed.
Our top stories
Six 'all clear' women told they have cancer after investigation into Oxfordshire Breast Screening Service assessments
7:40am Thursday 18th December 2014
SIX women who were given the all clear after breast cancer screening have been told they have the disease following an investigation.
12:30pm Thursday 18th December 2014
A collision involving a cyclist and a car has taken place in Blackbird Leys, closing a road.
11:02am Thursday 18th December 2014
A MAN who exposed himself to a woman in Headington is being sought by police.
10:04am Thursday 18th December 2014
THE FATE of two turkeys on an Oxfordshire farm this Christmas was decided by an online poll by radio station JACKfm.
9:30am Thursday 18th December 2014
OXFORD United’s rising stars will get a taste of the big time tonight as they attempt a giant-killing against Manchester City in the FA Youth Cup (7).
9:10am Thursday 18th December 2014
FAMILIES gathered by candlelight at a vigil for youngsters and their teachers targeted in a Taliban terrorist attack.