Caleb Flynn trial Day 4: Mistress testifies on steamy affair, bombshell texts, tattoos and more

Tonight on Courtroom Insider, bombshell testimony in the Caleb Flynn murder trial as the woman who says she carried on a years-long affair with Flynn took the stand.

Alleigha Botner described a secret relationship involving matching tattoos, getaways and more than 100,000 messages. But the most gripping testimony centered on what she says Flynn repeatedly told her about his wife, Ashley, and the private messages prosecutors displayed for the jury.

Botner also revealed what Flynn allegedly told her just hours before Ashley was killed. She says he promised a major change was coming and sent her a final message before going to bed. The next morning, Botner learned Ashley was dead.

Grace Wong joins Nate Eaton from the courthouse with everything that went down in the courtroom…plus, investigators testified about whether the damaged garage door really showed signs of a home invasion, the search for the missing murder weapon and other evidence from inside the Flynn home.

We’ll break down the biggest moments from a dramatic day in court and Botner’s testimony isn’t over yet.

Watch in the video player above.