An 89-year-old man has been arrested on suspicion of shooting and wounding several people in attacks on government buildings in Athens. Hours after the double shooting in the Greek capital, authorities announced a suspect had been detained in the western port city of Patras, reportedly attempting to flee to Italy. His arrest followed a countrywide manhunt. “He has been detained in custody,” a police source said. “He was armed.” The attacks unfolded earlier on Tuesday when a gunman walked into a social security office and opened fire with what appeared to be an antiquated shotgun, injuring a female employee in the leg. That attack was followed by a second assault on an appeals court, where a man fitting the same description entered a chamber while in session and opened fire, lightly wounding four court officials. The court building was immediately evacuated but not before the gunman had fled the scene.…