Saudi Arabia on Wednesday executed in the kingdom’s east a man convicted of strangling his mother to death, the interior ministry announced in a statement. Masallah al-Shemari, a Saudi, “strangled his mother to death before beheading her,” said the statement carried by official news agency SPA. Shemari was beheaded by the sword in the eastern Saudi port city of Jubail, it said. His beheading bring to three the number of people executed in Saudi Arabia this week and to 14 the number since the beginning of the year, according to an AFP tally based on official reports. Rights group Amnesty International said the kingdom executed 79 people in 2011.