The truth lives in the cross-references. No single document names the killer, but three documents from different stages, read together, point at one person.

Who did not have a clear motive for murder?

Who is definitely telling the truth in the interviews?

Alejandro sent one last message the night before he died. He was trying to tell his sister something important. Have you read it?

The Ortegalfabeto isn't decoration. Each drawing is a word in the dictionary. Try to decode the messages.

Look at the first letter of each word in the coded messages.

Messages spell: Valeria learned about the inheritance + Diego has gambling debts.

Look at the will and cross check it with other documents. What does it tell you about the motives?

The photo in stage 3 is the key to solving the case.

Submit your answer.