It came out at the very beginning that Scott attempted to tase Slager. It’s in this post, at the link. Also, based on timeline analysis there was time to reload it.
I looked at the article and I see where Slager says Scott grabbed his taser. I don’t see where he claimed that Scott had tased him, which is what the poster I was replying to thought had happened (that is, that Scott had tased Slager). You might be right about the time to reload.