Reddit folks have been examining Boston photos, and have settled on two suspicious-looking dudes, mostly on the basis of the straps on their backpacks compared to FBI photos of the bomb bag. One reddit suspect is nicknamed "The Blue Robe Guy" (because "robe" is so much more sinister than "jacket").
I looked at one of the many photos of B.R.G., and about fell off my chair.
I'd swear that's my late husband Jay. Same color and texture of hair. In some other photos he looks very tall, like Jay. Same body type, slope from chest to little pot belly. Same face, in general. Same smile. Same rounded shoulders and neck thrust. Same slope at the back of his head. Jay kept his beard slightly longer, but hey! Beard! Jay also had that same white patch at his chin. Same nerdy look. He always carried a backpack in his hands, never on his back. The only difference is that Jay always wore glasses, could not wear contacts.
This IS Jay in his early 40s. He actually would have been 61 last month.
But I guess if you're a ghost, you don't need glasses any more. And you don't age.