Dr Jim Sprott

PHOTO: STUFF Dr Jim Sprott died in 2014. More than five years later his children are still fighting over his large estate.

The children of a scientist who helped free Arthur Allan Thomas are still fighting over his multi-million dollar estate more than five years after his death.

Dr Jim Sprott was 89 years old when he died in Auckland in 2014. 

The forensic scientist rose to national prominence in the 1970s for his role in overturning Thomas’ conviction for the murders of Harvey and Jeanette Crewe.

He also achieved notoriety for his controversial theory on the cause of sudden infant death syndrome (SIDS), which he claimed was caused by toxic gases emanating from babies’ mattresses.