Connor Tremble stabbing: Accused was 'paranoid and aggressive'
A man accused of stabbing his teenage love rival to death was "jealous, paranoid and aggressive", his ex-girlfriend has told a court.
Oxford Crown Court heard Will Blencowe was angry that Connor Tremble was dating his former partner Aimee Harrison.
Connor Tremble, 17, died in hospital two days after he was stabbed at least 10 times on 13 February.
Mr Blencowe, 21, of Oxford Road in Banbury, denies murder.
Two other men are also on trial in connection with Mr Tremble's death.
Grant Clemens, 24, of Stockwells, Moreton-in-Marsh, Gloucestershire, and Bradley Jones, 21, of Chipping Norton, both deny perverting the course of justice.
Ms Harrison, 20, told the court she went out with with Mr Blencowe for four years but they split up in September.
In January she began a relationship with Mr Tremble.
The prosecution claims Mr Blencowe could not handle her being happy with someone else.
It is alleged that on 13 February Mr Blencowe took a taxi from Oxford station to Connor Tremble's home in Fairacres Road.
The prosecution said Mr Tremble tried to defend himself with his arms but was stabbed repeatedly.
It is claimed Mr Blencowe kept the taxi waiting outside before getting back in and heading to Witney.
He spent the night in a hotel in Stratford-upon-Avon, where police found samples of Mr Tremble's blood, the court heard.
Ms Harrison said Mr Blencowe owned a collection of knives at his home in Banbury and would pose with them in front of a mirror.
She described him as "paranoid, over-protective and jealous" and said he would spit in her face.
The case continues.