if you have some time, read the whole post.
I read the post with a little more attention and I have to admit that my answer didn't make too much sense given the unsolved mystery that connects your friend and user @davedee. What they both have in common is really Google Chrome and the fact that they generated a BTC and LTC address on the same day using two different HWs.
This could be the starting point for alot of people finding their funds back.
The case of the first user mentioned has remained unsolved, and perhaps this new data will help someone understand what actually happened. I assume you contacted Ledger back then about what happened, was there any useful feedback from them?