If you read the whole statement it read a bit differently.
HIZBOLLAH SLAMS BEHEADING OF AMERICAN AS UN-ISLAMIC (well sort of)
Hizbollah condemns this horrible act that has done very great harm to Islam and Muslims by this group that claims affiliation to the religion of mercy, compassion and humane principles,"
"The timing of this act that overshadowed the scandal over the abuse of Iraqi prisoners in occupation forces prisons is suspect timing that aims to serve the American administration and occupation forces in Iraq and present excuses and pretexts for their inhumane practices against Iraqi detainees."