Frank Piazza testified on Day 20 as a forensic video expert, explaining his analysis and chronological compilation of cellphone and surveillance footage. Cross-examination examined timestamp and recording irregularities; on redirect, he reaffirmed that the videos accurately depicted the events shown.
Frank Piazza
Forensic audio and video editor and president of Legal Audio Video.
About
Frank Piazza testified on Day 20 as a forensic video expert about cellphone and surveillance recordings associated with the InterContinental Hotel footage. He described examining the files for manual alteration, correcting a playback-speed issue, and identifying limits on timestamp accuracy and embedded visual distortions.
Piazza explained that he assembled a chronological compilation by matching overlapping visual anchor points across camera views rather than relying on synchronized timestamps. The court admitted the compilation after it was played, while Piazza described footage showing a man dragging a woman into a hallway and appearing to throw a vase in her direction.
On cross-examination, defense counsel repeatedly examined timestamp jumps, buffering, motion activation, corrupted packet delivery, and an apparent interval of nearly 15 seconds. Piazza explained that technical artifacts could affect displayed time information and that cellphone footage was used to connect surveillance segments across a period the surveillance system did not record.
On redirect, Piazza clarified that the feeds had different timestamp offsets, including one of about five minutes and 55 seconds and another of about five seconds. He maintained that the videos reliably and accurately depicted the events shown.
Key Points
Piazza was accepted as an expert in video enhancement and analysis and testified that the cellphone and surveillance recordings showed no signs of manual alteration. [1]
He explained that he used overlapping visual anchor points, rather than matching timestamps, to assemble a chronological multi-camera compilation. [1]
Cross-examination focused on irregular timestamp displays, technical artifacts, and the use of cellphone footage to bridge a period not recorded by the surveillance system. [1]
Piazza testified that differing timestamp offsets did not change his conclusion that the videos accurately depicted what happened. [1]
Trial Record (8)
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