The victim of the brutal knife attack in Leytonstone tube station was lying in a large pool of his own blood as “pandemonium” unfolded, a court was told.
In a statement read to the court, Leanne Bostock described seeing knifeman Mire “stamp” on Mr Zimmerman’s head as he fell to the floor.
She added: “The attacker started to shout at the other travellers, ‘get back, get back’.
“I heard a lot of shouting, ‘he has got a knife’. There was pandemonium. There was an atmosphere of panic.
“As the victim lay on the floor, the attacker kept kicking the victim and stamping him continuously. He wanted to hurt the victim.
“As far as I am concerned, this was a completely unprovoked attack.”
Passenger Charles McCorkell said: “The victim was trying to get up.
“He was not in a good way. I noticed a large pool of blood.
“I could see he was losing a lot of blood. I remember seeing what looked like the black handle of a knife nearby.
“The area was now becoming busy with people. A man came up to me and told me he was a doctor, he began to speak to the victim.
“The area was so busy, still lots of shouting and screaming.”
He described seeing Mire “lunging” with a knife at another passenger in the station.
Another eyewitness, Catherine McEvoy, described seeing Mr Zimmerman lying “in a large pool of blood”.
She saw the defendant on the other side of the ticket barrier, and described him as looking “angry” and “aggressive”, the court heard.
And Louise McGuinness said she saw him “saw through a man’s neck”.
She added: “I could literally hear the man’s skin being ripped open.”
Mire admits one count of wounding with intent and four of attempted wounding.
He denies one count of attempted murder.
The trial continues.
TUBE KNIFE STABBING WITNESSES DESCRIBE ‘PANDEMONIUM’