Records Don't Lie

The case file

Between 5:00 PM and 5:25 PM, the gym's motion sensor logged movement in the locker room -- and a gym locker was forced open. Four people were nearby that evening. Whose alibi falls apart?

The rule: Every finding below comes from a verified record -- logs, cameras, receipts. Exactly one suspect's story contradicts the evidence.

The clues

1. Tom Beck: Phone tower records place Tom Beck near river toll plaza at 4:38 PM. A camera at the office recorded Tom Beck at 5:15 PM. A camera at riverside park recorded Tom Beck at 5:46 PM.
2. Peter Aldis: The keycard log shows Peter Aldis badging into north garage at 4:37 PM. Phone tower records place Peter Aldis near riverside park at 4:55 PM. A camera at river toll plaza recorded Peter Aldis at 5:20 PM.
3. Felix Grant: A parking receipt puts Felix Grant's car at north garage at 4:41 PM. The keycard log shows Felix Grant badging into the office at 5:14 PM. Phone tower records place Felix Grant near downtown at 5:33 PM.
4. Ivy Chen: A parking receipt puts Ivy Chen's car at the mall at 4:47 PM. Phone tower records place Ivy Chen near the office at 5:12 PM. The keycard log shows Ivy Chen badging into north garage at 5:33 PM.

Who did it?

1. Felix Grant
2. Peter Aldis
3. Ivy Chen
4. Tom Beck

The verdict is still sealed. The answer is revealed here tomorrow — or play today's case and render your own verdict now.