Troy Arrington Jr., left, and Derick Davis II have been charged with first-degree murder in the death of UNC professor Feng Liu. Both are in the Orange County jail.
Troy Arrington Jr., left, and Derick Davis II have been charged with first-degree murder in the death of UNC professor Feng Liu. Both are in the Orange County jail. hlynch@newsobserver.com
Troy Arrington Jr., left, and Derick Davis II have been charged with first-degree murder in the death of UNC professor Feng Liu. Both are in the Orange County jail. hlynch@newsobserver.com

UNC professor killed in Chapel Hill; 2 men charged

July 24, 2014 9:55 AM