Great, now that that's settled.
Fred and George Weasley, of Weasley's Wizard Wheezes fame, attended an event for the Harry Potter: The Exhibition in Madrid.
The exhibit has been traveling the globe since 2009 and features an impressive amount of artifacts from the wizarding world.
The twins looked like their gloriously happy selves at the event (both clearly alive).
We can't tell them apart but neither could Molly so, it's ok.