a telling quote from within the cited article:
"Don Evans, spokesman for The Church of Jesus Christ of Latter-day Saints in Arizona, said Saturday he was unaware of the attack and had never heard of anything like it in the United States."
i might take from this that attcks against the missionaries are rare. this lack of persecultion might suggest an absence of true faith, if you were to take to heart the words of Jesus who promised that persecution would be the lot of those who believe in Him and follow his commandments.
also i see no mention of witnesses. apparently the only witness to the attack besides the attackers is the missionary, so we have only his word that they called him the dread name mormonn. not saying that he is to be disbelieved but he refused to allow his name to be used in the report, so it is just as possible that he fell down the stairs after a night of heavy drinking.
but we will have to await the appearance of the videotape on utube that the attackers must have taken, in which they hoot and holler while carrying out the desecration.