USC RB Ronald Jones wears No. 4 to honor Joe McKnight in Rose Bowl

Ronald Jones wore No. 4 as a tribute to Joe McKnight, who last killed last month in a shooting.

USC running back Ronald Jones is wearing No. 4 in honor of former Trojans running back Joe McKnight, who was killed in Louisiana last month.

McKnight was reportedly in a conflict at a highway intersection and attempting to apologize to another man, who then shot him more than once.

USC running back Ronald Jones II will wear No. 4 in honor of Joe McKnight at the Rose Bowl. pic.twitter.com/RVWWXOL1mk

— Arash Markazi (@ArashMarkazi) January 2, 2017

Ronald Gasser was initially released without charges but later arrested and jailed on a charge of manslaughter.

• Investigation of former NFLer Joe McKnight's killing

McKnight was a star for USC from from 2007 to 2009 and went on to play three seasons with the New York Jets and one season with the Kansas City Chiefs. He last played for the Saskatchewan Roughriders of the Canadian Football League.