>> reporter: the call actually involved the son of the owner of the denver broncos. 29-year-old john bowlen for the broncos in marketing. he's also a candidate to take over the team's ownership from his father, pat bowlen, who has alzheimer's. wednesday night john's girlfriend called 911 during a fight but the call dropped and when 911 called back, john answered. >> reporter: he later called himself "the blood of the city." >> reporter: bowlen was later arrested. his girlfriend told police he shoved her against a wall. the incident brings domestic violence back to the nfl's doorstep. last year, former baltimore ravens running back ray rice punched his then-fiance in an elevator. that case and others prompted the league to overhaul its personal conduct policy. now, any nfl employee who commits domestic violence is automatically suspended and an independent investigation is launched. nfl commissioner roger goodell spoke to "cbs this morning's" charlie rose in april about the new rules. >> our policy is not the same as a criminal standard. it's a standard that says if you violate our personal