literally, the nine millimeter weapon used to kill mo found in caitlin's home. >> that same day, a municipal court judge issued a warrant for armstrong's arrest for the offense of murder. >> shockingly, by that time, caitlin had fled the country selling her jeep for quick cash and then hiding in a costa rican surf hostel under an assumed name for 43 days. but detectives were on her trail and found her when she was picked up by texas marshals. caitlin looked a little different. >> she cut her hair, also dyed her hair to a darker brown color, and we were also told that she had some type of bandage over her nose area, where she claimed that she had gotten into a surfboard incident. >> and a receipt for rhinoplasty. texas marshals quickly brought her back to austin, where caitlin would literally make one last attempt to escape custody before finally standing trial. shortly after. >> we, the jury, find the defendant, caitlin armstrong, guilty of the offense of murder as alleged in the indictment. >> mo's grieving mother left heartbroken over the sheer tragedy of it all. >> if you allowed yourself to actually know her, you never, ever would