Commonwealth v. Read — Trial Archive
Trial 2 Trial Day
◀ Day 21 Trial 2 Day 23 ▶

Day 22 - May 28, 2025

Welcher (Cross)

Judge Beverly J. Cannone
5Proceedings
3Pages
1Witnesses
1,584Lines
Day 22 of 36
Appearing:
Hank BrennanRobert AlessiJudson Welcher

Judge Cannone limits Welcher to consistency opinions, barring him from identifying Read's Lexus as the striking vehicle. On cross, Alessi questions his methods and Aperture's contract; Welcher disclaims a legal opinion and knowledge of payments.

Full day summary

Day 22 opens with Judge Cannone's ruling on Dr. Judson Welcher's expert testimony: he may opine that the Lexus data, damage, and O'Keefe's injuries are mutually consistent, but he may not state that Read's specific Lexus struck O'Keefe — that final inference belongs to the jury. Brennan then completes direct examination, eliciting Welcher's opinions on tail light damage thresholds, glancing-impact biomechanics, and the absence of leg fractures as consistent with a sideswipe collision. Defense attorney Robert Alessi conducts an extensive cross-examination spanning most of the day, questioning confirmation bias, an amendment Welcher understood as authorizing $325,000 while disclaiming a legal opinion and knowledge of payments, mid-trial modifications to Welcher's PowerPoint, and the absence of any force analysis for the arm injuries central to the prosecution's theory. On redirect, Welcher distinguished autopsy information he considered from cause- and manner-of-death conclusions; on recross, he confirmed considering highlighted portions of the final diagnosis.

Key Moments
  • Judge Cannone rules Welcher may testify to scientific consistency but is barred from stating Read's Lexus struck O'Keefe, reserving the ultimate inference for the jury.
  • Welcher testifies on direct that tail light damage is consistent with a collision above approximately 8 mph and that O'Keefe's injuries are consistent with a Lexus strike and hard-surface fall.
  • Alessi establishes on cross that Welcher performed detailed F=MA force calculations for the head injury but performed no equivalent analysis for the arm lacerations at the center of the prosecution's theory.
  • Alessi questioned Welcher about Aperture's contract authorization and PowerPoint changes during trial; Welcher said a May 13 alternative-path slide was added after additional information was provided but removed before presentation.
  • On redirect and recross, Welcher says he considered highlighted findings from the final diagnosis but distinguishes those findings from its separate cause- and manner-of-death conclusions.
Notable Moments

Defines the day's controlling legal boundary: Judge Cannone permitted limited consistency opinions but barred Welcher from saying Read's Lexus collided with O'Keefe, leaving that inference to the jury.

Cannone ruled that Welcher could offer certain consistency opinions, but could not testify that Read's Lexus collided with O'Keefe because that conclusion was not based on the application of reliable scientific methodology.

View moment →
Notable Quotes
Judson Welcher
“Correct. We don't have that level of certainty. We have that the height and geometry matches.”
Welcher's concession that he cannot say with certainty O'Keefe's head was positioned to be struck by the spoiler is the sharpest single methodological admission extracted during cross.
Judson Welcher
“We don't have enough information to determine that.”
Welcher said there was insufficient information to determine how long the arm would need to remain in contact with the tail light to produce the observed wounds.
Video thumbnail for Day 22 — Welcher (Cross) 6h 52m
Watch →

1. Judson Welcher — Direct (Part 2)

Judge Cannone rules on the scope of Welcher's expert testimony, permitting damage and injury opinions but barring conclusions about which specific vehicle struck O'Keefe. Brennan then continues direct examination, covering tail light damage, arm lacerations, and biomechanical analysis of pedestrian impacts.

→
Procedural
Procedural - Opening (Welcher ruling)
24 lines

Judge Cannone delivers her ruling on Dr. Judson Welcher's expert testimony. She permits him to testify that the Lexus data and damage are consistent with a collision on January 29th at 12:32 a.m., and that O'Keefe's injuries are consistent with being struck by a physically identical Lexus. However, she bars Welcher from testifying that Read's specific Lexus collided with O'Keefe, finding that conclusion relies on inference beyond scientific methodology — an inference the jury is equally positioned to draw. Brennan and Alessi then resolve a dispute over exhibit slides 131 and 132, confirming that a previously struck slide can be revisited with a corrected heading. The jury enters and Judge Cannone conducts the standard morning inquiry.

Direct
Judson Welcher Hank Brennan
66 lines
Procedural
Procedural - Exhibit Admission
6 lines

2. Judson Welcher — Cross (Part 1)

Robert Alessi cross-examines Dr. Judson Welcher on forensic methodology, contract questions, presentation changes, and the lack of a case-specific arm-force calculation.

→
Cross
Judson Welcher Robert Alessi
1433 lines

3. Judson Welcher — Redirect/Recross

Redirect and recross of Dr. Welcher on the scope of his reliance on autopsy findings and the CARS report photo.

→
Redirect
Judson Welcher Hank Brennan
30 lines
Recross
Judson Welcher Robert Alessi
14 lines
Procedural
Procedural - End of Day
11 lines
◀ Day 21 Trial 2 Day 23 ▶