The Manifest Destiny Network Chronicles, Book 1: The Sister Diaries

Daniel has begun a quest to discover who killed his parents in 2037, when he was ten. Denise, a friend of Daniel's mother, had been arrested, tried, and convicted. However, in 2052, Daniel receives a diary and an electronic letter from a just-deceased Denise claiming her innocence. Given Daniel's few accomplishments in life, can he possibly resolve this complex cold case?