Defense witness Andrew Rentschler of ARCCA on the stand during the Karen Read retrial in Norfolk Superior Court, Wednesday, June 11, 2025, in Dedham, Mass. Greg Derr/The Patriot Ledger via AP, Pool ...

Andrew Rentschler, a biomechanical engineer and accident reconstructionist from ARCCA, began testifying on Tuesday and returned to the stand on Wednesday for the 31st day of testimony in Read’s ...

Wednesday featured a tense cross examination, with Special Prosecutor Hank Brennan sparring with the defense’s crash expert, Dr. Andrew Rentschler from ARCCA.

Andrew Rentschler testifies on the injuries John O'Keefe received when he died at the Karen Read retrial, Tuesday, June 10, 2025, in Dedham, Mass.

Andrew Rentschler, a senior biomechanist and an expert in accident reconstruction, helped the National Hockey League design safer glass between team benches following Chara’s massive hit on Max ...

She told both sides she intends to send the experts, Daniel Wolfe and Andrew Rentschler, an order for production of records — namely, their communications with Read’s lawyers.

Dr. Daniel Wolfe, an accident reconstruction specialist, and Dr. Andrew Rentschler, a biomechanical engineering specialist, both testified on behalf of Read in June 2024.

Andrew Rentschler, a biomechanic engineer hired by the defense, told jurors Laura Dankesreiter’s story cannot be believed.

Co-founder Andrew Rentschler wanted to open the craft beer brewery in his hometown, Georgetown. "When we opened there was nothing anywhere near us,” said Rentschler.