One of Spider-Man's oldest enemies, MacGargan has recently abandoned his Scorpion suit and identity bonding with the alien symbiote that had previously been hosted by Peter Parker and Eddie Brock. He now goes by the infamous name, Venom.
Dying of cancer, Eddie Brock decided to auction for charity to the highest bidder the alien symbiote from which he derives his powers as Venom.
After being purchased by New York mobster Don Fortunato to be used by his son Angelo, thinking him weak, the alien symbiote abandoned its new host leaving him to fall to his death after a short and murderous career.
It then sought out a new host that shared both its hatred of Spider-Man as well as the will and experience of a seasoned criminal. Mac Gargan returning to his apartment after a recent kidnapping of Aunt May and intimidation of Spider-Man, only to find the symbiote which made Gargan a proposition to be its newest host. The one-time Scorpion eagerly accepted the offer, and was thus transformed into the monstrous Venom.
Location
This villain is encountered during an event in Chapter 2.