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

Opening arguments got underway Monday in the highly anticipated trial of hip-hop mogul Sean "Diddy" Combs. The Celtics lost Game 4 to the Knicks, but may have lost even more after star Jayson Tatum left the game with an apparent lower body injury. ABC News’ Ike Ejiochi reports on the latest headlines from the Massachusetts case.

Karen Read pleaded not guilty to murder charges in the death of Boston police officer John O’Keefe and is facing a retrial after a jury was unable to reach a verdict last year.

Massachusetts State Police Sgt. Yuri Bukhenik is expected to return to the stand Monday in the Karen Read murder trial.

Private text messages between Karen Read and an ATF special agent were read aloud for the jury during her retrial. The messages were also apart of her first trial last year. NBC News' Kathy Park has the latest on the trial.

Jurors also heard from two people — Ryan Nagel and Heather Maxon — who arrived at 34 Fairview Road in Canton, where O‘Keefe’s unresponsive body was found, at the same time as Read and O‘Keefe did shortly after midnight on Jan. 29, 2022.

The ongoing trial is Read’s second; her first murder trial ended in a high-profile mistrial last July after jurors returned deadlocked. Abby Patkin is a general assignment news reporter whose work touches on public transit, crime, health, and everything in between. She has been covering the Karen Read murder case.

After flirty text messages surfaced between Karen Read and Brian Higgins, the trial took a shocking turn—raising questions about whether jealousy was a motive for the murder of John O'Keefe.