Peter has been able to see visions through his dreams even before he made contact with Isaac. I think that makes him somewhat clairvoyant "naturally," though I use that term loosely for obvious reasons.
Eden pointed the gun at her head before Sylar could take her powers. In the webcomic, right after Eden dies, Bennet and the Haitian run in and shoots tranqulizers at Sylar - I guess it had some effect, especially with the Haitian mentally blocking Sylar's powers.
The Haitian speaks for the first time and decides not to erase Claire's memories as ordered. Somehow, that gives me a good impression of him.
This is the situation/recap for each Hero as of now:
Mohinder returns to New York and begins to work on searching for the names on the list. He tries to call what seems to be the FBI to help him with his search, but is ignored, despite some of the people on the list being killed off.
Micah and DL are still on the run. DL is injured from a shot fired from Jessica's sniper rifle, and Micah is currently limping from his injuries when Jessica flings him to the side. It's unknown at this point what they're going to do.
Niki, upon returning to her normal self and realizing that she can't be trusted, volunteers to be arrested for murder. It's possible she's being questioned at a police station or even in jail at this point.
Hiro and Ando make contact with Isaac, where they explain everything to each other up to this point. Hiro shows the comic he brought from the future and gives some details about his journey, such as the bomb and Isaac's death. Isaac realizes that he's beginning to have some control over his power without the heroin, and his latest precog image shows Hiro fighting a dinosaur with his sword in hand. Hiro comments about needing to find the sword.
Eden, of course, is dead. She had wanted to kill Sylar using her powers of persuasion, telling Sylar to kill himself with a gun, but failed miserably when Sylar uses his powers to drag Eden through the glass window. At the last desperate moment, she aims the gun to her head and kills herself, probably to prevent Sylar from taking her powers. Sylar, meanwhile, is re-captured by Bennet and the Haitian.
Claire is panicked that the people around her have suddenly lost memory of recent events, such as her brother no longer knowing about her powers, and her friend Zach suddenly claiming she hasn't spoken to him since 6th grade. She assumes that the people trying to kill her are to blame, to which she calls her father about the situation. Meanwhile, the Haitian sneaks into her room and suddenly grabs her, explaining to her that he was meant to erase her memories as he was ordered to by her father, just like her family and friends - her mother apparently needed her memories erased multiple times. However, he chooses that it's important for Claire to retain her memories, then asks if she could keep a secret.
Matt and Audrey meet up with Peter to question him about the Sylar case at the high school. Matt tries to read Peter's mind, only to have his power mimicked through Peter. Later on, Audrey questions Claire and Mr. Bennett, whom which Matt tries to use his telepathy powers on, but only hears a strange static sound. It's shown that the Haitian is responsible, and Matt suspects he's heard the sound before he was kidnapped. Following Bennett to his place of work, Matt and Audrey see Bennett meeting with the Haitian, in which Matt tries to use his powers again. Concentrating harder than ever, Matt gets a nosebleed, but manages to get the word "Sylar."
Peter meets up with Claire and realizes her healing ability, though he seems to be sick, coughing everywhere. Nathan comes and frees him from the police station, and as Nathan tries to explain the situation, he collapses onto the ground and has another vision - he's in an empty city, cars abandoned on the streets. One by one, he sees each Hero staring at him, some of them trying to reach out to him while others try to keep away. He stares at his hands and realizes that he was going to explode. He wakes up, muttering "It's all my fault." Then he falls unconscious once again.
