Ririko and Dick arrived at the Gotham Police Department Intelligence Division.
Barbara sat behind a desk piled with folders, typing away at her keyboard.
She discreetly pulled up the report on the murder she had just investigated:
"The last person the elder Elliott saw yesterday was indeed Harvey. Security footage shows them talking in the garden's side corridor for about twelve minutes. Harvey returned to the banquet hall, and no one saw the elder Elliott again after that."
She brought up a crime scene photograph. The elder Elliott lay in a dark corner of the garden, his chest pierced by a sharp weapon. The plants and flowers around him were stained with blood.
Ririko looked at the screen and said, "Harvey took me home last night. I can vouch for him."
Barbara did not argue. "The location of death was the City Hall garden. The timing fits perfectly with someone killing him and then returning to the banquet hall."
Standing beside Ririko, Dick said indignantly, "Harvey would never do something like that. He has to be innocent."
Barbara glanced up at him and said helplessly, "Of course I know that, but we have to find another suspect to clear his name."
Ririko stared silently at the bloodstained plants in the garden, then suddenly said:
"I know someone who can tell us who the killer is."
Dick turned to look at her. "Who?"
Ririko turned and headed outside. "We need to go to the biology department first."
The biology building at Gotham University was rather old, its walls covered in vines, as though no one had tended them in a long time.
Ririko went to the laboratory on the top floor. According to the university's records, Dr. Pamela Isley conducted her research there.
Dick pushed open the laboratory door and