3 Muslim students shot to death near UNC at Chapel Hill, US.

A 46-year-old man has been charged with murder in the shooting death of three Muslim students in an apartment near the University of North Carolina at Chapel Hill campus.

Police haven't said what may have compelled the accused, Craig Stephen Hicks, to allegedly carry out the attack Tuesday evening. He turned himself in to police later in the night.

But given the victims' religion and comments the alleged shooter apparently left on a Facebook page, many social media users wondered what role, if any, the victims' faith played. The victims were Muslims: Deah Shaddy Barakat, 23; Yusor Mohammad, 21; and Razan Mohammad Abu-Salha, 19.  All three victims had been shot in the head.