Why would Gaspipe give the contract to Hydell? he would have picked a made guy to do the hit not Hydell.
We might be talking about two different things here. Angelo Ruggierio (who was a made guy) gave the contract to Hydell.
I went back to the book and the title of Chapter 41 is "The Golden Ox Incident: Gotti's Revenge?" The book is, in fact, implying that Gotti may have been behind the order to whack Gaspipe. However, as Beanshooter pointed out, a bad drug deal seems to be the general consensus on why the contract on Gaspipe's life was handed out.
In Chapter 44, there is a lunch meeting with Gotti, Casso, Sammy the Bull, and Amuso.
Gotti is quoted as saying to Casso, "Problem is, there's all these...rumors out there, about you, about me, and it's easy for misunderstandings to be created...."
