“Did Wayne sign the suspension paperwork before he left Jefferson Street?” Ruth asked.

“He signed it at five,” Claire said.

“He told me the administrative audit needed clean protocol records.”

“Have you put this timeline down on paper yet?” Ruth asked.

“I was up until three in the morning lining up every single second against our dispatch log,” Claire said.

She drew a steady red line across the graph paper, connecting the dispatch audio waveform to the automated central office log.

“The central office server is calibrated to an atomic clock in Chicago,” Claire said.