Ian Peek was the host of the infamous tabloid newscast "The Inside Peek". He used a special device that turned him intangible, allowing him to walk through walls and get dirt on Gotham City's celebrities.
Ian Peek was a low rate journalist craving for a leverage to jump-start his career. The opportunity to obtain it arose when he interviewed the groundbreaking scientist Dr. Taka, who told him about his research on "matter phasing". Ian stole Taka's work before setting the place ablaze. Taka died in the fire, and his work was assumed to be lost, though Peek later revealed to Bruce that he had in fact kept the notes.
Thereafter, Ian used the stolen belt to walk through solid objects and get up-close footage of Gotham's socialites. Among others, he exposed boxing trainer Jack Turley's affair with his champion's girlfriend; the musician Jamie Jerald's dealings with splicing; and Paxton Powers neglecting work for good times at a private party. However, unbeknownst to him, the overuse of the device would inflict permanent damage to his body. Ian started to suffer from acute stomach pains, which he dampened with aian Bruce said Taka would never help someone like Peek after he tried to expose Bruce and Terry for being part of the Batman legacy. Peek admitted to the circumstances of how he acquired the belt. When Bruce found out Peek had stolen Taka's research, and killed him in the process, he walked away to leave Peek to his fate as punishment for his crime. However given how fast the blotch was spreading, Bruce most likely realised he could not help Ian in time to save him.
The intangible blotch soon started spreading all over Peek's body. Bruce's rejection infuriated Peek who then jumped on Bruce. Batman crashed in, and Peek held them at gunpoint for a moment. However, he rapidly lost his bodily substance and started falling through the floor. Bruce managed to recover Peek's recording, saving his and Terry's secrets. Although Terry attempted to save Peek, he was unable to due to Peek's loss of corporeal substance and gravity's pull on him. Pulled down by gravity, Peek plummeted into the center of the Earth, but not before emitting a maniacal and desperate laugh. His fate remains unknown although Bruce implied that he would keep falling until reaching the Earth's Core, which would presumably kill him if the belt itself did not.
Powers and abilities
When Ian Peek activated the vibra-space belt, his body became a translucent light blue, with black effervescent spots, making him unrecognizable. Most importantly, he became able to adjust his density just by force of will. Peek used his technology mainly to get up-close video recordings to broadcast on his show. However, this also made him a superb adversary. When he took on Batman, Peek could be intangible one second to evade capture and corporeal the next to slug and grab his opponent. He also seemed to be surprisingly strong given he could swing Batman with enough force to shatter crates.