The text argues that Peter didn't kill A&S. It says (Acts 5.5) that upon [i]hearing[/i] he [i]fell down[/i] (fell all of a sudden) and died. Hearing that he had been caught was the immediate cause. As Robertson says, "It is needless to blame Peter for the death of Ananias. He had brought the end upon himself. It was the judgment of God...", not the murderous (or even judgmental) action of Peter.

Could it be possible that Peter killed Ananias and Sapphira? (Acts 5)

For the record, I don't believe this is true. Just a conversation I was having earlier and would like to hear more thoughts.