Exclusive: Darren Capewell, 37, becomes twelfth person to die in the jail since 2016.: A man has died in what is believed to have been a suicide at HMP Nottingham less than a month after the prisons watchdog made an unprecedented warning that the lives of inmates were at risk. Darren Capewell, who would have turned 38 next week, died in the prison on Wednesday. The Ministry of Justice (MoJ) said an independent investigation into the death would be carried out by the Prisons and Probation Ombudsman.