Does anyone know how to locally archive the twitter account of a dead person?

As everyone eventually will as the internet gets older, I know a few dead people. Obviously I don’t have access to their account, I can just see their tweets and photos that they left public. I have tried to archive them using www.archive.is which does correctly archive what it can see at the users account, but obviously twitter will not load the entire account history at first, you gotta keep manually scrolling down to load more and more and more of their posts through the years. Of course www.archive.is also won’t open all their photos and manually download those either. Does there exist some tool that would download whole public twitter accounts in the way I describe? When I google it all I get are ways for you to download something from within your own account.