A Muslim man who brutally murdered a Denver transit security guard said he did it “for the pleasure of Allah.”

Joshua Cummings, a 37-year-old convert to Islam, shot Regional Transportation District security guard Scott Von Lanken on January 30, in what has been described as an “execution-style killing.”

Von Lanken was on duty, explaining light rail routes at the Union Station stop to two customers, when Cummings approached him from behind, pointed a gun at Von Lanken’s neck, and fired. Police believe Von Lanken was targeted because he was mistaken for a cop—his uniform, as a security guard, was similar.

Cummings was found shortly after near the scene of the crime, carrying a gun and jihadist literature. He was arrested, and has since been charged with murder.
In a phone interview from jail with the local CBS News affiliate, Cummings refused to specifically admit to murder, but explained that whatever he did, he did it
“On the night in question, what I did do, I didn’t do that for the Islamic State. I did that purely and solely for the pleasure of Allah,” Cummings said.

He also told the media that, three days after the killing, he pledged allegiance to ISIS leader Abu Bakr al-Baghdadi and is “committed to being a soldier for the Islamic State.”

Cummings had previously been reported to the Department of Homeland Security by members of his own mosque, which described him as “pretty advanced on his path of radicalization” and was “not listening to reason.” The Department of Homeland Security did not act on the tip.