David McGowan mentioned in (lb). First I've heard of him. More books I need to read.
"On 15 June 2015 he posted the following on his website:
"On 14 April 2015, I presented a lengthy video deconstruction of the 2013 Boston Marathon incident through the Caravan to Midnight radio show/podcast. About a week later (on 20 April of all days), the nearly four-hour video presentation was uploaded to YouTube. Not long after that, someone using the username Phoenix Archangel posted an interesting comment: "John [Wells, the host of the show] always signs off with some of the best advice ever. Speaking of advice: this David McGowan fella really ought to quit smoking. With all the elitist feathers he's ruffling, he's likely to come down with a spontaneous case of hitherto undiagnosed stage 4 inoperable Pancreatic cancer."
https://wikispooks.com/wiki/David_McGowan