By Kelly-Ann Mills A woman thought a three-year-old girl was about to die in her arms after she was assaulted during a chemical attack on her mum and sister. The eyewitness even went to hospital with the little girl after seeing her slammed on to the ground twice on Wednesday night, before her attacker ran away. Speaking about what she saw, the woman who asked to remain anonymous, told the BBC she was about to settle down to watch Eastenders at home, when she heard a commotion. “I heard a bit of shouting and I could hear it louder,” she said. “So I ran outside. But I was just in shock. I first…