It’s absolutely debunked, unless you think there’s somehow a chance that the guy who was classmates with the murdered M.I.T. professor, attended Brown University for postgrad, and was seen on CCTV at Brown is somehow not the Brown university shooter.
It was posited baselessly and then debunked by evidence.
It's baseless or fringe, not debunked.
It’s absolutely debunked, unless you think there’s somehow a chance that the guy who was classmates with the murdered M.I.T. professor, attended Brown University for postgrad, and was seen on CCTV at Brown is somehow not the Brown university shooter.
It was posited baselessly and then debunked by evidence.