The Flash: Killer Frost’s True Origin Revealed

One of the bigger ongoing mysteries in The Flash has been solved, as this week’s episode revealed the origin of Caitlin Snow’s Killer Frost powers.

Warning: this article contains spoilers for “The Icicle Cometh”!

Last season, viewers learned that Caitlin originally manifested her Killer Frost powers as a child, contradicting the belief that she had been transformed by the STAR Labs particle accelerator explosion like most of Central City’s metahumans. So if it wasn’t the dark matter that did it, how did Caitlin become a metahuman years before Barry and Cisco?

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