Three Pakistani Vanished by Indian Police

Three Pakistani Prisoners who completed their 8 years of Jail in India are Vanished by Indian Police while they where going to Hospital due to massive torture that was done to them by Police in Jail. They where seriously injured due to torture by Indian Police and where going to be shifted in hospital. Now Indian media has started the drama that they  actally ran away while shifting to hospital. My question is that a person whose period of Jail is completed why he will run. Their time period of Jail of 8 years was completing in few days.