NEW : The suspects are `` some of the most violent , evil people on the planet , '' sheriff says . Police say they have no idea why this happened. ( CNN ) -- A Louisiana sheriff 's deputy directing traffic was shot and wounded , police have said . A short time later , 2 responding deputies die and another is hurt in a nearby shooting .
NEW : The suspects are `` some of the most violent , evil people on the planet , '' sheriff says . Police say they have no idea why this happened. A Louisiana sheriff 's deputy directing traffic was shot and wounded , police have said . A short time later , 2 responding deputies die and another is hurt in a nearby shooting .