Howard Martin was a former British army doctor and GP who was prosecuted for the murder of three patients in 2005 but acquitted.
10 Facts About Howard Martin
In 2005 Howard Martin was prosecuted for the deaths of three patients: Harry Gittins, 74, Stanley Weldon, 74, and Frank Moss, 59, all from County Durham.
Weldon had his life shortened by "two hours" according to the prosecution when Howard Martin gave him a terminal dose of painkillers.
Police put down the failure to convict to the fact that Howard Martin chose to remain silent during the proceedings meaning cross-examination was impossible.
Howard Martin's remains had been exhumed as part of the 2004 investigation into Martin.
Howard Martin repeatedly broke the trust to which patients are entitled; this is unjustifiable.
In 2010 Howard Martin gave a series of interviews to Daily Telegraph newspaper about his treatment of patients.
Howard Martin admitted shortening the life of some patients, often without their express permission, but denied committing murder.
Howard Martin admitted helping his terminally ill son to die.
Howard Martin has claimed that he was not an advocate of euthanasia, instead being concerned with patients' dignity in death.