Around the time of Ariel Peterson's disappearance, she and Trent McBride worked as paramedics for Waterbury Hospital. It turns out that she and Trent met Ariel on the side of the road while in an ambulance. Not wanting to fill out the paperwork for treating her, the two checked to see if she was okay and left.
She is the fifth of the Executioner's victims, representing the sin of sloth. She was knocked out, then left in a field heavily sedated and covered in honey to be eaten by animals.
While June was eaten by animals after her death, the actual cause of death was revealed to be respiratory failure (due to the IV she was connected to continuously administering paralytics).
June loved her husband Cam very much. Although, as Cam is revealed to be the Executioner and her murderer, we can assume that Cam did not return her affections to the same degree. Whether or not their marriage was used as an alibi during the course of his killings is debatable.
June and Sarah are not close, but are friendly with each other. June occasionally shows jealousy of and insecurity over Sarah's close relationship with Cam.