Doctors who examined Michael became suspicious of an attack after discovering 26 bruises on the baby’s body, damage to his anus, and traces of semen and blood in his nappy.
The official cause of death was ruled as a ‘traumatic head injury’, consistent with Shaken Baby Syndrome.
One of the carer's said the baby had wriggled off of the change table but was caught before he hit the floor - however medical experts say the injuries are not consistent with a fall in any case.
The matter has been referred back to police for investigation.