The Killer Isn't June

One murder. 51,600 suspects. Twenty-one clues. And this time, the mystery stays a mystery until you are ready for the truth.
When Dr. Alistair Venn is found dead inside a secured archive, the evidence points straight at June Calloway. Her credentials appear near the scene. Her property is found beside the body. She argued with the victim shortly before his death. But June did not kill him.
Your challenge is to prove who did.
The Killer Isnt June is a fair-play murder mystery logic puzzle for readers who want real deduction, not accidental spoilers, endless pages of names, or an answer exposed before the investigation is complete. Every one of the 21 clues matters. Each progressively narrows 51,600 suspects until exactly one possible killer remains.
The suspect system is streamlined for solving rather than tedious crossing-out. Clear checkpoints let you verify progress without revealing names. Optional hints stay separate. Detective notes, deduction worksheets, and a formal accusation page give you room to build your case before approaching the answer.
Most importantly, the solution is protected behind two spoiler barriers. No killers name sits opposite the suspect list. No bold answer waits on the next page. You decide when the reveal happens.
Then the protected solution reconstructs the crime, explains every clue, proves why June is innocent, and shows why no other suspect can fit.
Think carefully. Eliminate methodically. Make your accusation.
Only one name survives.