nfl able take stand come cowboys attempt honor slay police officer hometown nfl player post isis type execution police officer social media seem find voice express disapproval nfl deny dallas cowboys request wear arm-in-arm decal helmets saturday preseason opener los angeles rams.the cowboys unveil decal emotional start first pad practice train camp walk arm-in-arm field dallas police officials include police chief david brown dallas mayor mike rawlings families police officer slay line duty last month.the cowboys wear decal helmets train camp know would able wear decal regular season hop wear preseason certainly understand position league take diminish support concept unity support police force make live good daily basis coach jason garrett say arm-in-arm image something really believe hear talk couple weeks back try football team build team close talk lot unity back certainly embody surprisingly outspoken conservative tomi lehren thing two say controversial subject outspoken conservative tomi lahren slay nfl anti-cop support decision video