(New York Post) – The twisted ex-Marine who gunned down a dozen people in a California bar paused to ponder his mental health in two social media posts during the deadly rampage.

Ian David Long, 28, noted on Instagram that he was bored, not crazy — and wondered whether people would believe he was rational when word of the massacre spread, law enforcement officials told ABC News on Saturday.

“It’s too bad I won’t get to see all the illogical and pathetic reasons people will put in my mouth as to why I did it,” Long posted at 11:24 p.m., Wednesday on Instagram, just one minute before police entered the bar.

“Fact is I had no reason to do it, and I just thought… f— it, life is boring so why not?”

His next post, three minutes later, continued in a similar vein: “I hope people call me insane … wouldn’t that just be a big ball of irony? Yeah… I’m insane, but the only thing you people do after these shootings is ‘hopes and prayers’… or ‘keep you in my thoughts’… every time… and wonder why these keep happening.”

Investigators have yet to provide a motive for the latest U.S. mass shooting. Long committed suicide to end the killings.

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