▁cy ber ▁violence , ▁and ▁the ▁role ▁of ▁rap ▁music ▁and ▁social ▁media ▁in ▁gang ▁violence . ▁He ▁is ▁also ▁known ▁for ▁his ▁research ▁into ▁mass ▁shoot ings . ▁ ▁D ens ley ▁is ▁a ▁T ED x ▁speaker ▁and ▁has ▁written ▁for ▁CNN , ▁The ▁Con vers ation , ▁The ▁Guardian , ▁The ▁Her ald , ▁H uff Post , ▁Los ▁Angeles ▁Times , ▁Minn Post , ▁Sal on , ▁Star T rib une , ▁USA ▁Today , ▁and ▁The ▁Wall ▁Street ▁Journal ▁on ▁a ▁range ▁of ▁public ▁issues , ▁including ▁gang s ▁and ▁gang ▁responses , ▁gun ▁violence , ▁kn ife ▁crime , ▁drug ▁sales , ▁school ▁shoot ings , ▁and ▁violent ▁extrem ism . ▁He ▁has ▁appeared ▁on ▁CBS ▁This ▁Mor ning , ▁CNN ▁Ton ight ▁with ▁Don ▁Lem on , ▁Vic eland ' s ▁Black ▁Market : ▁Dis patch es ▁with ▁Michael ▁K . ▁Williams , ▁and ▁on ▁local ▁news ▁to ▁comment ▁on ▁criminal ▁justice ▁issues , ▁including ▁police ▁use ▁of ▁force ▁and ▁law ▁enfor cement ▁education ▁and ▁training . ▁ ▁Education ▁and ▁early ▁career ▁D ens ley ▁received ▁his ▁B . A . ▁in ▁soci ology ▁with ▁American ▁studies ▁from ▁the ▁University ▁of ▁North am pton ▁in ▁ 2 0 0 3 . ▁ ▁He ▁earned ▁a ▁M . S . ▁in ▁soci ology ▁from ▁the ▁University ▁of ▁Oxford ▁in ▁ 2 0 0 4 , ▁and ▁then ▁moved ▁to ▁New ▁York ▁City ▁where ▁he ▁en rolled ▁in ▁the ▁NY C ▁Te aching ▁F ell ows ▁and ▁taught