Jury in Brian Walshe’s murder trial heard testimony from the man who had an affair with his wife. Here are the takeaways

(CNN) — Brian Walshe on Thursday came face-to-face for the first time with the man who had been having an affair with his wife before her death, as he took the stand to testify in Walshe’s murder trial.

Washington, DC, real estate broker William Fastow is a key witness for the prosecution, as his testimony could offer jurors a potential motive while they weigh whether Walshe killed his wife, Ana Walshe, around New Year’s Day in 2023.

The jury also saw surveillance footage and GPS data from Brian Walshe’s phones that prosecutors are using to bolster their case that Walshe bought supplies to dismember his wife and then dispose of her body and belongings after her death.

Walshe maintains he did not kill the corporate real estate manager and mother of three – though he has pleaded guilt