The gunman’s motive remains unclear. Greek police have arrested an 89-year-old man in connection with a double shooting in Athens that left five people injured. The suspect was detained on Tuesday in the city of Patra, more than 200 kilometres (124 miles) west of the capital, following a large manhunt. The suspect had allegedly begun the shooting spree as he opened fire inside a social security agency in the district of Kerameikos in the centre of Athens. The attacker reportedly told an employee “to duck” before firing a shot that struck an employee of the state pension organisation EFKA in the leg. The head of the National Social Security Fund, Alexandros Varveris, told ERT Radio that the gunman had been wearing a trench coat under which he had hidden the shotgun. The pensioner then travelled by taxi to a nearby court in Ambelokipi, where four people were injured.…