Baby e, the fourth of seven babies murdered by the nurse was killed by an injection of air into his bloodstream. within 2a hours, letby tried to kill his brother, baby f, with insulin. medics were able to save him but his parents say he's been left with complex needs. judith moritz has spoken to them. in the corridor, i could immediately hear crying. it was... it felt more than crying. it was screaming. it was screaming, and i was like, what... ..what�*s the matter with them? i walked into the room. i seen her with my boy, and he had blood round his mouth, and lucy was there, but faffing abo...