Answer:
what does Dr Lanyon's letter reveal - Mr Hyde And Dr Jekyll are the same person.
What crime has Mr Hyde committed - Killing sir Danvers Carew
What does Dr Lanyon give Mr Utterson - Mysterious documents
Where was Mr Hyde found dead - Dr Jekyll's laboratory.
Step-by-step explanation:
Reading the story, the letter did reveal that Hyde and Jekyll were the same person.
Lanyon gave Utterson a nice juicy stack of documents.
It was established that Hyde killed Sir Danvers pretty early.
Hyde poisoned himself and that is why he was dead in Jekylls laboratory.