NFL star's brother's heartbreaking post before death at 22, Luke Knox, Buffalo Bills' Dawson Knox
Former Nashville high school standout football player dies at age 22
FIU Football Player Knox, Brother of Bills TE, Dies at 22 – NBC 6 South Florida
Dawson Knox will return to Buffalo Bills on Tuesday
Bills TE Dawson Knox Breaks Silence After Brother's Tragic Passing
FIU says football player Luke Knox, 22, has died
FIU football player Luke Knox, brother of Buffalo Bills star Dawson Knox, dies suddenly at 22
Luke Knox, FIU Linebacker and Brother of Bills' Dawson Knox, Dead at 22 – NBC Connecticut
Luke Knox, brother of Buffalo Bills' Dawson Knox, dies at 22: 'He had passion for football'