RIYADH - Saudi Arabia beheaded a Pakistani and two Saudis on Tuesday, bringing to 48 the number of death sentences carried out this year. Mumtaz Hussein Deen Ahmed, of Pakistan, was executed in Medina after his conviction for smuggling heroin. Najr bin Faraj al-Azmi al-Otaibi, a Saudi, was put to death in Taif for stoning and caning to death another man. Another Saudi, Moeid bin Ali bin Moeid al-Saad al-Qahtani, was beheaded by the sword in Eastern Province for gunning down a man.