The only one of the four suspected Revolutionary Popular Struggle (ELA) terrorists in custody to have admitted any link with the group was taken to hospital yesterday after suffering a light stroke. Doctors at the Athens Evangelismos hospital said 64-year-old architect Christos Tsigaridas was in «satisfactory» condition and was beginning to regain use of his left arm, which showed signs of paralysis in the morning, when he was diagnosed with the stroke by doctors at Korydallos Prison. Tsigaridas has been in custody pending trial since the beginning of February, when he was arrested with another three ELA suspects. All four were charged with membership of the group and with participation in a string of bomb attacks and attempted killings. Tsigaridas, whom police believe to have been ELA’s top decision-maker, is the only suspect to have admitted «political responsibility» for the group’s activities up to 1990, after which he claims to have retired. ELA killed two people and set off over 100 bombs between 1975 and 1995, after which it is believed to have disbanded.