A teenager selling coffee in the northern Syrian city of Aleppo was arrested by Islamist rebel fighters for insulting the Prophet Mohammed, beaten and then executed in front of his family, a watchdog group claims.

The boy, Mohammed Qatta, 14, reportedly refused to give a customer coffee, the Syrian Observatory for Human Rights reported Sunday.

"Even if [Prophet] Mohammed comes back to life, I won't," the boy said, who was known by his nickname "Salmo."

Extremist rebels driving past in a black car overheard the comment, the opposition Aleppo Media Center said. Qatta was taken away by the fighters and later brought back, his head wrapped with his shirt and his body covered with marks from whipping.

The rebels then read out the boy's sentence - not in a Syrian accent, but in classical Arabic. They accused the boy of blasphemy and told the crowd - which included the boy's parents - that anyone who insulted the Prophet would suffer a similar fate. http://news.yahoo.com/teenager-15-executed-islamist-rebels-syria-154751521--abc-news-topstories.html