Blackest Night

In the 2009 - 2010 Blackest Night miniseries, Ronnie Raymond is called by a black power ring to join the Black Lantern Corps. In the following issue, his reanimated corpse is shown confronting Barry Allen and Hal Jordan alongside Hawkman, Hawkgirl, Elongated Man, Sue Dibny, and J'onn J'onzz. He then attacks Jason Rusch (the current Firestorm), and absorbs him into his own version of the Firestorm matrix. Then, using Jason's unique abilities, turns Gehenna into table salt, simultaneously ripping her heart out with a smile. He uses the Firestorm Matrix to absorb Jason's anger over Gehenna's death, providing the Black Lanterns with even more emotional energies He goes on to attack Barry Allen and co. at the Justice League satellite. Jason then briefly asserts himself, allowing the heroes to escape. Regaining control, Ronnie proceeds to absorb Jason's willpower. Like other Black Lanterns, the undead Firestorm mimics the personality of Ronnie Raymond, often wisecracking and exhibiting other stereotypical teenage behavior. In the final battle against Nekron, Ronnie is restored to life alongside Jason, the two separating from Firestorm. Ronnie is confused, asking Atom where Professor Stein is while Jason is upset with Ronnie killing Gehenna. Ronnie, however, apparently has no memory of doing so.