 In 1994 , Burson @-@ Marsteller executive Thomas J. Mosser was killed by a mail bomb sent to his North Caldwell , New Jersey home . In another letter to The New York Times , Kaczynski claimed that FC " blew up Thomas Mosser because ... Burston @-@ Marsteller [ sic ] helped Exxon clean up its public image after the Exxon Valdez incident " and , more importantly , because " its business is the development of techniques for manipulating people 's attitudes . " This was followed by the 1995 murder of Gilbert Brent Murray , president of the timber industry lobbying group California Forestry Association , by a mail bomb addressed to previous president William Dennison , who had retired . 
