Three relatives of Mexican marine killed , President Felipe Calderon says . Marine was killed in shootout with drug cartel last week . Mexico City , Mexico ( CNN ) -- Three members of the family of a Mexican marine who died in a shootout last week were killed Tuesday in the southern state of Tabasco , Mexican President Felipe Calderon said . Comment:
Three relatives of Mexican marine killed , President Felipe Calderon says . Marine was killed in shootout with drug cartel last week . Comment: