The Broken Alibi

The case file

Between 7:00 PM and 7:30 PM, the lot's floodlight motion sensor tripped -- and a car was broken into. 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. Mira Sol: Phone tower records place Mira Sol near downtown at 6:43 PM. The shift log shows Mira Sol clocked in at the office at 6:49 PM. A camera at north garage recorded Mira Sol at 7:02 PM.
2. Tessa Quinn: Phone tower records place Tessa Quinn near riverside park at 6:37 PM. The shift log shows Tessa Quinn clocked in at the office at 7:11 PM. A camera at river toll plaza recorded Tessa Quinn at 7:55 PM.
3. Ivy Chen: The toll transponder on Ivy Chen's car pinged at river toll plaza at 6:47 PM. A camera at the office recorded Ivy Chen at 7:17 PM. Phone tower records place Ivy Chen near riverside park at 7:52 PM.
4. Nadia Cole: The shift log shows Nadia Cole clocked in at the office at 6:55 PM. Phone tower records place Nadia Cole near downtown at 7:15 PM. A camera at river toll plaza recorded Nadia Cole at 7:55 PM.

Who did it?

1. Tessa Quinn
2. Nadia Cole
3. Mira Sol
4. Ivy Chen

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