A Greek engineer accused of the kidnap and manslaughter of Wakefield travel agent Stephanie Hammill has been ruled mentally unfit to stand trial.
Stephanie Hammill worked as a travel agent
A judge said he had consulted psychiatrists and concluded Ioannis Revenikiotis, 28, of Dewsbury, was incapable of instructing solicitors.
Proceedings will continue but the jury will be asked only to decide whether he committed the acts he is charged with.
They will not be asked to come to any conclusion about criminal liability.
Mr Justice Butterfield, at Leeds Crown Court, said Mr Revenikiotis was "not capable of properly instructing solicitors and certainly not capable of himself giving evidence".
Removed from dock
Shortly after the trial was resumed following the ruling, the judge ordered the defendant be removed from the dock due to his behaviour.
Mr Revenikiotis had demanded his interpreter leave and then repeatedly interrupted the court.
He is accused of causing the death of 20-year-old Miss Hammill, who fell from a moving car she got into after a night out in the mistaken belief it was a taxi.
The court was told she was left "terrified", with her leg trailing from the car as he sped off before her boyfriend could get in.
Prosecutors say Miss Hammill either jumped or fell from the vehicle because she feared she was about to be sexually assaulted.
She was later found dead in Batley Road, Wakefield, after being hit by another car.
Mr Revenikiotis is also charged with the abduction and indecent assault of a 23-year-old pregnant woman, who he picked up outside a bus station late at night in Dewsbury, nine months before Miss Hammill's death.
The trial continues.