In the investigation into the November 2022 killing of four University of Idaho students, one of the most consequential pieces of evidence wasn’t what investigators found — it was what went silent. According to court filings, the suspect’s phone stopped reporting to the cellular network for roughly two hours during the window when the killings occurred, then resumed connecting to towers consistent with a route back to his residence. Investigators mapped the towers the device connected to before and after that gap, then cross-referenced the resulting route against surveillance footage of the suspect’s vehicle to reconstruct his movements that night.
Cases like this are never built from a handful of data points. Investigators typically have to work through communications, surveillance footage, and location records to isolate the few moments that actually matter. In Cellebrite’s 2026 Industry Trends Report, a survey of 1,200 practitioners across 63 countries, 97% named smartphones as their top source of digital evidence, and 94% of public safety respondents said growing complexity is straining their caseloads. Reconstructing a usable timeline from that volume of data is where much of the investigative effort goes.
