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Dzhokhar Tsarnaev— Case Archive
evidenceevidencedemonstrative2015 Federal Trial3127AGrant's Exhibit 3127A plotted the defendant's phone activity in Dartmouth on January 31, 2013 using a 6:50 p.m. outbound text and a 9:03 p.m. data entry. Cross-examination challenged the data entry's location reliability; Grant acknowledged hour-block recording but did not unconditionally accept that unreliability premise.
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3127A

Grant's Exhibit 3127A plotted the defendant's phone activity in Dartmouth on January 31, 2013 using a 6:50 p.m. outbound text and a 9:03 p.m. data entry. Cross-examination challenged the data entry's location reliability; Grant acknowledged hour-block recording but did not unconditionally accept that unreliability premise.

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  • January 31, 2013 phone-activity plot

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The plot was used to compare recorded phone activity in Dartmouth with the timing of a pressure-cooker purchase at Macy's in Saugus, without identifying who used the phone.

Trial Record (1)