'I knew I was running for my life': How the Southport attack unfolded

Leanne Lucas, who was leading the dance class, had first spotted Rudakubana outside when she went to open a window to let some air into the warm dance studio.

She thought nothing of it until the door swung open and he appeared.

What happened next, she said, left her and the girls with "scars we cannot un-see, scars we cannot move on from".

The full horror of what was unfolding only became fully clear when she was stabbed in the back. She later told the girls: "I'm surviving for you".

Heidi Liddle, who was also supervising the class, had been sitting on the floor helping the children to make friendship bracelets.

By the time she realised what was happening, the fast-moving attacker had already done unspeakable damage.

Heidi jumped into action and began trying to rush the girls towards the door.

One girl ran for a toilet on the other side of the landing and she followed.

Heidi locked the door behind them and pressed herself against it. Do not make a sound, she told the girl.

And then the door rattled. Rudakubana was still looking for victims.

Outside, she heard the screams of children who had not managed to escape.