When Bella opened the door to Tristan's office, she saw him on the phone by the window, his back facing her.
However, Tristan seemed to hear the door open, turned to see the direction of the door, and signaled her to come closer.
Standing next to Tristan, Bella could hear their conversation. At that moment, she found the answer she wanted to hear; they had indeed captured Marco, the person who was responsible for her father's death.
She knew from the autopsy report results that her father didn't have any harm, only a cut on his neck. This meant that her father didn't picture Marco as a threat. So many thoughts filled her mind as she tried to figure out what happened at the crime scene that day.
Too immersed in her thoughts, Bella didn't notice that Tristan had already finished talking. She pulled back from her thoughts when Tristan turned her body to face him.