It's very likely that such a fanfiction exists. Fanfiction is a vast and diverse world where writers can let their imaginations run wild. Since Black Cat has her own motives and character traits, and Spiderman has his enemies and challenges, a scenario where Black Cat kills Spiderman could be an interesting exploration of betrayal, revenge, or a change in the status quo. There may be multiple versions of such a fanfiction, each with different interpretations and story developments.
I'm not aware of any official 'Captain America Kills Spiderman' fanfic. This concept goes against the general heroic and friendly relationship between the two characters in the Marvel universe. However, in the realm of fan - created works, anything can be imagined, but it would be a very dark and out - of - character take.
One reason could be to create a shock factor. It goes against the typical hero - villain dynamic we expect. Another might be to explore a darker side of Black Cat's character, showing her capable of extreme actions.
Perhaps a new character could be introduced as the 'kingpin'. This character could be an older, more experienced wizard who has been in the shadows for a long time. They might have some ulterior motives and a different view on the wizarding world's politics compared to Dumbledore or Voldemort.
Kingpin is typically shown as blind in the comics. It's a defining characteristic that influences his actions and interactions within the comic universe.
One possible reason could be mind control. Maybe an enemy has the ability to control Captain America's mind and make him turn on Spiderman. Another reason might be a misunderstanding. For example, if Spiderman was framed for a crime he didn't commit and Captain America believed the false evidence.
Yes, 'American Kingpin' is indeed a true story. It presents a truthful representation of the events and characters it focuses on, without much fictionalization.
Kingpin is a force to be reckoned with. He has immense physical strength, but his real power lies in his criminal empire and his ability to manipulate people and situations.
In the comics, Kingpin's height isn't precisely defined. However, he's consistently portrayed as exceptionally tall and broad, giving him a menacing presence. Different artists might have slightly different interpretations.