Lucy Letby celebrated winning a bet on the Grand National just hours after she attempted to murder twin boys, a court heard.
It is alleged Letby, 33, attacked the prematurely-born infants during a day shift at the Countess of Chester Hospital's neo-natal unit. The court heard child M "dramatically" collapsed in his incubator in the unit's intensive care room at 4pm on April 9, 2016.
His brother, Child L, also deteriorated beside him at "pretty much the same time", prosecutor Nick Johnson KC said. Jurors at Manchester Crown Court heard Letby messaged her mother, Susan, at 1pm about the Grand National, due to be to be staged later that day.
