Greater Manchester Police say they have formally identified a seven-week-old baby who was admitted to hospital on Sunday with severe head injuries, and subsequently died.
They are not releasing the baby's name or photograph at this stage.
More top news
The lawyers are said to have known their clients were members of the Shia militia and not "the innocent bystanders" that was later claimed.
David Wyeth was carried over the line by Matthew Rees, a stranger who was also taking part in the London Marathon.
A cold northerly wind sweeps patchy rain and showers in across the UK today - particularly affecting northern areas.