Here is the translation:

  " Your Excellency, the President,
   I learned with deep sorrow and indignation the news of the abominable crime which targeted the International Marathon Boston, killing many innocent people.
   In this painful circumstance, I express, speaking on behalf of the Kingdom of Morocco, our firm condemnation of these atrocious crimes and our strong solidarity with the American people facing these reprehensible attacks, which are condemned by all religions and universal human values.
   I also send, through you, my warm condolences and sincere sympathy to the bereaved families of the victims and the American people, praying the Almighty to surround the victims with His holy mercy and give You, and their relatives, patience and consolation, and grant the injured speedy recovery.
   Praying to the Almighty to protect you and the American people from all evil, please accept, Your Excellency, the President, my sincere feelings of solidarity and sympathy."