Matthew DiSogra

Matthew DiSogra testified as a defense expert in Trial 2, appearing exclusively on Day 24. His testimony focused on reanalyzing the clock alignment work performed by prosecution experts Burgess and Welcher regarding the timing relationship between a Techstream vehicle event in Karen Read's Lexus and the last recorded movement of John O'Keefe's phone. DiSogra argued that when all possible clock offset scenarios from Burgess's own data are applied, the overwhelming majority show O'Keefe's phone lock event occurred after the vehicle event — a conclusion the defense presented as undermining the prosecution's timeline.