zeta beta tau suspended and charged for the ` disgusting ' acts .
three members were expelled for the deplorable acts at the warrior beach retreat in panama beach city on april 17 .
event designed to give ex-servicemen a relaxing break .
university of florida and emory university branches were there at the time .
they allegedly ripped flags off cars and urinated on them and threw items off balconies .
wounded veteran nicholas connole said he was spat on and felt ` hurt '