In the 90s my class read a book about murder mystery. Maybe just a mystery. I think his uncle was killed but not really. I want to say he had an uncle Sam or he was born on Fourth of July. He went to a hotel and questions everyone everything. It was my first mystery book.
The Westing Game, by Ellen Raskin.
Absolutely The Westing Game by Ellen Raskin….one of the all-time greats, and a favorite of mine from childhood, too! It’s been through many, many editions, so don’t be put off if you don’t recognize cover art (even better, google Westing Game and look at images tab and you’ll probably spot the cover your remember!)