WARNING: The following article contains spoilers for Absolute Carnage: Miles Morales #3 by Saladin Ahmed, Federico Vicentini, Erick Arciniega and VC's Cory Petit, on sale now.
J. Jonah Jameson has gone through some extreme lengths to take down Spider-Man as part of his ongoing crusade to remove the long-perceived "menace" from the streets of New York City. From funding the creation of the supervillain Scorpion to creating a task force specifically to hunt down Spider-Man during his tenure as the city's mayor, Jameson has often done more harm than good for New Yorkers as he pursues his obsessive campaign to bring down the web-slinger at any cost. In the third and final issue of the tie-in miniseries Absolute Carnage: Miles Morales, Jameson undergoes a monstrous transformation to become the latest terrifying host of a Carnage-spawned symbiote.
Picking up from the last issue's cliffhanger ending, Miles Morales is able to prevent the symbiote he's been forcibly bonded to from killing Jameson has his intended target from Cletus Kasady. While wounded by the symbiote's toothy bite, the lifelong newsman is able to crawl away to safety while Miles continues to wrestle for control of his own body.
Using his electric Venom Blast, Miles is able to finally separate himself from the symbiote only to have to contend with Dan, a serial killer who has bonded to his own Carnage symbiote and tasked to ensure Miles carries out his mission of killing Jameson. As Miles attempts to use his Venom Blast to free the murderer, the symbiote takes advantage of the vulnerable Jameson.
After finding Jonah hiding out in a stairwell as he awaits an emergency pickup, the symbiote forces itself upon him and bonds with him. After years of tolerating, encouraging or bankrolling some of Spider-Man's greatest foes, Jameson finds himself hideously transformed into a twisted version of Carnage, striking Miles just as the teenage superhero has managed to subdue Cletus' homicidal minion. The two super-powered figures battle across the rooftops of New York City before crashing into a shoe store that Miles visited at the start of the tie-in miniseries.
After a brutal battle, Miles is able to use his Venom Blast to free Jameson and tear the Carnage symbiote into shreds of what it once was. While Jonah remains completely incapacitated from his wild day as both a victim and temporary host of the symbiote, Miles makes a desperate decision and decides to bond with the last scrap of the Carnage symbiote to transform once again, this time apparently retaining control over his body after the bonding process. With his strength and abilities boosted by the merger, Miles sets out to join the renewed fight against Carnage for the fate of the planet despite any potential lasting consequences to himself.
The lead up to Absolute Carnage revealed that anyone who has ever bonded to a symbiote has had a codex implanted into their spine, seemingly no matter how brief the connection. Carnage has been steadily hunting down individuals to rip the codices embedded in their spines to awaken the evil god of symbiotes Knull from his lengthy slumber and conquer the universe. While it has yet to be confirmed, it is likely that Jameson's time bonded to the Carnage symbiote has made him an even bigger target for Cletus with the symbiote almost assuredly leaving a codex in his spine before being driven away by Miles.
Absolute Carnage: Miles Morales has focused on the war for the teenage Spider-Man's body as he is tasked by the twisted villain to kill J. Jonah Jameson. While Miles is ready to take the fight back to Cletus Kasady with a symbiote seemingly under his control, the lingering effects of the symbiote on Jameson could make him a target as Absolute Carnage continues, or it could even take a more long-lasting toll on Spider-Man's ultimate frenemy.