Episode Details

An expert had cautioned that the cell phone records cited in the Bryan Kohberger case could not place a person at one exact physical location. Cellular data generally showed which tower or sector a phone had connected to, but those coverage areas could extend over significant distances and overlap with other towers. That meant investigators could use the records to establish broad patterns of movement and approximate areas where a phone had traveled, but the data did not function like GPS coordinates. In Kohberger’s case, the probable cause affidavit had said his phone connected to towers providing service to the area of the King Road residence on multiple occasions before the murders, while it stopped reporting to the network during a key period on the morning of November 13, 2022. The expert stressed that a tower connection by itself did not prove Kohberger had actually been at the victims’ home or even necessarily in the immediate neighborhood at the time of a particular connection.

The limitations were especially important because prosecutors had used Kohberger’s cellular records alongside surveillance footage and other evidence to reconstruct his alleged movements before and after the killings. The phone data had appeared to support the broader theory that Kohberger left Pullman, traveled toward Moscow, went offline during the period surrounding the murders, and later reconnected to the network south of Moscow before returning toward Washington. But the expert had emphasized that those records had to be interpreted cautiously because factors such as tower load, terrain, signal strength and network behavior could affect which tower handled a call or data connection. As a result, the cellular evidence had been potentially useful for showing general movement and corroborating other evidence, but it had not independently established that Kohberger or his phone had been at 1122 King Road at a specific moment.


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