FBI profiler: Okla. killer deranged man holding on to radicalized religion

Alexander Nolen said he "didn't like white people" and had an apparent fascination with beheadings.

Those are just two of the chilling details CNN learned Tuesday about the man accused in a sickening attack on his co-workers in Moore, Oklahoma.

According to the Cleveland County District Attorney, Alton Alexander Nolen was motivated by revenge after he was suspended from his job at Vaughn Foods, for making racist comments.

The FBI is investigating claims that Nolen spoke Arabic when he allegedly attacked two women with a knife. He had recently converted to Islam and quoted the Quran in various Facebook postings.

Nolen is charged with first-degree murder and attempted murder, and will likely face the death penalty.