Just a guess, but it may have had something to do with the Pharisees trying to come up with the initial judgment against Jesus (which, like Stephen, would have been stoning). The Pharisees had been trying to trap Jesus with His words for a long time. But then the Pharisees became afraid of the people following Jesus, so they trumped up the political charges to hand Him off to the Romans.
Where of course he was traded for Barabas and ended up hanging on the cross.
Yup; it sure LOOKS that way!
John 10:32
Jesus answered them, "I showed you many good works from the Father; for which of them are you stoning Me?"