Defense in Karen Read trial proposes that Boston Police Officer John O'Keefe's death might be linked to a "jealousy"-fueled fight with ATF agent Brian Higgins.

Text messages between defendant Karen Read and ATF agent Brian Higgins are essential to understanding the theories behind both the prosecution and defense’s case.  Read all of them here.

Yuri Bukhenik, lawyers, including WBZ's legal analyst Katherine Loftus, became increasingly skeptical that prosecutors might not call key witnesses in their case against Karen Read. Those witnesses are Brian Higgins,

Karen Read exchanged flirty texts with another man two weeks before her cop boyfriend was found murdered, according to testimony Friday.

Video played for jurors in the Karen Read trial shows Brian Higgins at the Canton police station on the night John O'Keefe died, Massachusetts State Police Sgt. Yuri Bukhenik testified.

Yuri Bukhenik, a Massachusetts State Police trooper, read dozens of text messages between Karen Read and Brian Higgins, an ATF agent.

Karen Read's lawyers peppered State Police Sgt. Yuriy Bukhenik with questions about witness Brian Higgins in his last day of testimony.

Dedham Superior Court officials blame ‘unavoidable circumstances’ for the cancellation in testimony in the sensational retrial of Read in Massachusetts, which is in its fourth week

Massachusetts State Police Sgt. Yuri Bukhenik testifies in a case involving Karen Read, who is accused of hitting her boyfriend with an SUV and leaving him to die.