[Cboldt]

-- But I just heard on CNN that there ARE similarities between the two events. No details were forthcoming. --

CNN reported similarity so far is cell phone, and model of cell phone (not necessarily exactly the same model). I don't think that is near enough to link the events. Cetain products are near ubiquitous, like black powder and nails.

[TigerClaws]

Wasn’t the attack on the 5k race a pressure cooker as well?

Same day, similar devices. Awfully coincidental if not related.