Many of his friends were old Rosewood.’’ Diane had
actually met him once at a contributors’ party at the
museum. He had come as a guest of Vanessa Van
Ross, the museum’s biggest patron and good friend to
Diane. Clymene hadn’t been with him.
Vanessa was the first to light the fire under the police when he died. For reasons Vanessa couldn’t explain exactly, she had never liked Clymene. ‘‘There
was something about her that seemed fake to me,’’
was all she could tell Diane.
‘‘One of Archer O’Riley’s friends, along with his
son, insisted that the police investigate,’’ said Diane.
She didn’t say that Vanessa had to convince his son
at the time.
‘‘O’Riley’s infection had spread more rapidly than
normal, so the ME’s suspicions were already raised.
Then she found puncture wounds in the bend of his
arm that could not be accounted for as a result of the
blood sample taken by his doctor. Two of the punctures were not in his vein, but into the muscle tissue.
We—the crime scene team—were asked to search the
house. We started in his bedroom,’’ said Diane. Rivers listened without comment. The intensity of
his gaze revealed his interest in what Diane had to say. ‘‘It had been several days since Archer O’Riley was
last in his house, and the room had been cleaned. We
didn’t expect to find anything. But behind the
nightstand on his side of the bed, caught between the
stand and the chair rail, we found a cotton ball. It had
two distinct creases in it—as from wiping a needleshaped object.’’ Diane made an effort to keep her
descriptions objective.
Rivers opened his mouth to speak but said nothing.
He motioned for Diane to proceed. He probably
thought the evidence so far was pretty weak, but he
leaned forward, resting his elbows on the table. ‘‘We analyzed the substances on the cotton ball,’’
said Diane.
‘‘And these substances told the story?’’ said Rivers. Diane nodded. ‘‘One crease contained trace amounts
of corn syrup, cornstarch, carrageenan, L-cysteine, casein hydrolysate, traces of horse manure, and an
ample supply of
The most interesting of these being casein hydrolysate
and the horse manure—and the bacteria. The second
crease had trace amounts of the same substances but
also included Archer O’Riley’s blood, rohypnol, and
epithelials from Clymene and from her horse.’’ Rivers was frowning now. Diane wasn’t sure if it was from trying to understand the string of substances she had just rattled off or from a deep concern about
Clymene’s guilt.
‘‘Can you walk me through what all those things
mean?’’ he asked.
‘‘Corn syrup, cornstarch, carrageenan, L-cysteine,
and casein hydrolysate are ingredients in a baby formula,’’ said Diane.
Rivers raised his eyebrows.
‘‘Casein hydrolysate is a good medium for growing
tetanus. Horse manure is a good place to get the tetanus bacterium.’’
