Transcript for Officials Investigate Death of Journalist in Belize
Next to the murder of an American tourist in the central American country of Belize. Anne Swaney. A colleague of ours, tonight we're learning about the chance decision she made in the hours before she died and the man police are now questioning. Here's ABC's Marci Gonzalez. Reporter: Tonight, K9s searching the area in Belize where an American tourist was found dead Friday. As police try to figure out who killed 39-year-old journalist Anne Swaney, and why. Chicago has lost an amazing person. Reporter: The executive web producer from our ABC station in Chicago, WLS, was on a return trip to this retreat. Police say on Thursday, she volunteered to stay behind from a group horseback riding trip. Instead, practicing yoga alone at this waterfront deck. By the time the group returned hours later, they say, she was gone. We did a quick search and she wasn't around, and we notified the police. Reporter: Police searched for hours. Finally finding her body the next day in this river. There were bruises around her neck and on either side of head there was lacerations. Reporter: Investigators are questioning a Guatemalan fisherman who was in the area at the time and interviewing staff where Swaney was staying. Also tonight, looking into whether the killer took Swaney's cell phone. Her family saying it was missing from the scene. A possible clue -- friends mourning tonight in Chicago -- hope could lead to the killer. Marci Gonzalez, ABC news, new
This transcript has been automatically generated and may not be 100% accurate.