A 55-year-old convict in the 2013 Sonai murder case, in which three Dalit men were killed in Ahmednagar district, died following a heart attack on Saturday, an official said.

Popat Darandale was sentenced to death along with five other accused in the sensational case by a court in Nashik in January this year. Darandale had been lodged in the Nashik Road Central Jail. Two days ago, he was admitted to the Nashik Civil Hospital for treatment to a heart-related ailment.