May 2026: Thirlwall Inquiry report delayed to at least September 2026 · six-baby inquests relisted to 2027 · CCRC review active · Shoo Lee Panel: no medical evidence of deliberate harm.
The Crown alleged Babies O, P and Q (triplets) deteriorated and Babies O and P died as a result of deliberate harm by Lucy Letby.
Triplet pregnancies carry 3-4x the perinatal mortality of singleton pregnancies even in optimal modern management. Combined with extreme prematurity, the natural-cause mortality risk for the Babies O/P/Q cohort is among the highest in modern neonatology. Sequential deterioration in surviving triplets after one triplet's death is a recognised phenomenon: the surviving infants are subjected to the same antenatal pathology, the same postnatal management environment, and shared physiological stress responses. The Panel's unified natural-cause reading for Babies O, P and Q sets out the trajectory in detail.
Triplet pregnancies have triple-to-quadruple the singleton perinatal mortality. Combined with extreme prematurity, the Babies O/P/Q cohort sits at the very top of the natural-cause risk pyramid — before any allegation of deliberate harm is added.
The triplet pregnancy was acknowledged. The specific triplet-prematurity natural-cause mortality statistics, and the unified physiological-stress trajectory across the three infants, were not foregrounded as a competing explanation.
The Panel provides a unified natural-cause reading for Babies O, P and Q grounded in triplet-prematurity hemodynamics and shared antenatal pathology. The reading is set out in our /analysis/babies-o-p-deep-dive page.