Chapter 10 - Someone Inside Was Helping Him
The Mercer clinic had seventeen employees.
By sunset, Detective Bell knew one of them had logged into Derek’s hidden archive and deleted more than eight hundred files.
The question was which one.
The clinic manager denied knowing the password.
The receptionist denied knowing the server existed.
Three therapists said Derek kept his private office locked whenever he left.
Then a computer technician found building security footage.
At 10:14 a.m., while Derek was testifying in court, a woman entered his office.
Melissa Kane.
Lila had mentioned her during the forensic interview.
“Sometimes Melissa.”
“My dad’s friend.”
“She doesn’t like when I call her his girlfriend.”
Melissa was thirty-four.
Former college gymnast.
Operations director at Mercer Performance.
She had been romantically involved with Derek for at least two years.
She was also the person who accessed the files.
Police arrived at her apartment at 7:40 p.m.
She opened the door wearing running clothes.
“What’s this about?”
Aaron showed the warrant.
Her face changed.
“You can’t take my computers.”
“We can.”
“I have patient information.”
“We know.”
Inside, officers recovered two laptops, three phones, external drives, and a document shredder still containing fragments of paper.
Melissa asked for an attorney.
The interview stopped.
But digital evidence spoke quickly.
Texts between Melissa and Derek showed she knew about Lila’s “training.”
One message from Derek:
She keeps resisting the brace. Rachel taught her weakness before she disappeared.
Melissa replied:
Then don’t let a seven-year-old control the session.
Another message:
School called about attendance again.
Melissa:
You’re too soft with her.
Aaron stared at the screen.
People often imagined abusive households as one powerful person and everyone else as helpless.
Reality could be uglier.
Sometimes another adult saw what was happening and chose comfort over conscience.
Melissa had done more than see.
She had helped normalize it.
But the deleted archive revealed a different possibility.
Derek had leverage on Melissa too.
Recovered file names included:
MELISSA — CLINIC FUNDS
Financial investigators discovered more than $180,000 had been diverted through fake vendor invoices over three years.
Some money went to accounts controlled by Melissa.
Some went to Derek.
Now investigators understood why Melissa might destroy the archive.
She wasn’t only protecting Derek.
She was protecting herself.
Under pressure from prosecutors, Melissa eventually agreed to talk.
Her attorney negotiated conditions but no immunity.
At 11:18 p.m., she sat across from Aaron.
“I never hurt Lila.”
“You helped Derek cover what he did.”
“I didn’t know it was that bad.”
“You told him not to let a seven-year-old control the session.”
“I meant she was stubborn.”
“She collapsed at school.”
Melissa looked down.
“I didn’t know.”
“You lived in the house several nights a week.”
“I never went into the basement room.”
“Why?”
“He didn’t allow me.”
Aaron watched her.
“Did that concern you?”
“He said it contained proprietary equipment.”
“Did you believe him?”
“At first.”
“And later?”
Melissa said nothing.
“When did you realize?”
“About six months ago.”
“What happened?”
“I heard Lila crying downstairs.”
Aaron leaned forward.
“What did you do?”
“I asked Derek.”
“And?”
“He said she was having a tantrum.”
“Did you check?”
“No.”
“Why?”
Melissa’s eyes filled.
“Because I didn’t want to know.”
That answer was painfully believable.
She continued.
Two weeks earlier, Lila came upstairs after a session looking pale.
Melissa noticed marks near her waist.
“She asked me for ice.”
“What did you do?”
“I gave her some.”
“Did you ask what happened?”
“I knew.”
“Did you report it?”
“No.”
“Why?”
“Because Derek said if anyone interfered, Lila would end up in foster care.”
Aaron’s expression hardened.
“And you believed the man causing the harm was protecting her from foster care.”
Melissa started crying.
“I was scared of him too.”
“Then help us.”
She looked up.
“How?”
“Tell me where his archive is.”
“I deleted it.”
“No.”
Aaron shook his head.
“You deleted a copy.”
Melissa stared at him.
“You knew?”
“Derek Mercer does not strike me as a man who keeps only one copy of his leverage.”
She laughed bitterly.
“No.”
“Where is the other one?”
“I don’t know.”
“Think.”
Melissa pressed both palms to her temples.
“He has a storage unit.”
“Where?”
“I don’t know.”
“Who pays for it?”
“Not him.”
“Who?”
She hesitated.
“His mother.”
Aaron looked up.
“Derek’s mother is alive?”
“Yes.”
“Where does she live?”
“Florida.”
“Name?”
“Evelyn Mercer.”
That led investigators to a storage company outside Cranberry Township.
Unit 118 had been rented for six years under Evelyn Mercer’s name.
The payment card belonged to Derek.
A judge authorized a warrant.
Police opened the unit at 8:05 the next morning.
Inside were ordinary boxes.
Furniture.
Old clinic equipment.
Tax records.
Then an officer found a locked fireproof cabinet.
Inside were dozens of encrypted drives.
Paper files.
Old phones.
Photographs.
And handwritten notes.
The insurance archive.
Derek had collected secrets on nearly everyone around him.
Dr. Feldman’s falsified letters.
Lieutenant Avery’s payments.
Melissa’s financial fraud.
A judge’s son’s addiction treatment.
A donor’s affair.
A city official’s private medical issue.
Nothing was too personal if it created leverage.
One file was labeled:
RACHEL LOCATION ATTEMPTS
Another:
VALERIE KINCAID
Valerie had known Derek only days.
Yet the file contained her home address.
Vehicle registration.
Employment history.
Her parents’ names.
Photographs downloaded from social media.
And one recent picture taken outside the hospital.
Aaron immediately ordered police protection.
But another folder concerned him more.
LILA — SCHOOL CONTINGENCY
Inside were profiles on Principal Greene.
The counselor.
The nurse.
And several teachers.
Derek had been preparing for the possibility that someone at school might report him.
He knew which adults had financial problems.
Which had divorce disputes.
Which had disciplinary complaints.
He planned to discredit whoever challenged him.
This was not panic.
It was strategy.
Then investigators opened one final drive.
It contained a video recorded three months earlier in Derek’s basement.
Lila stood near the table.
She was crying.
Derek’s voice came from off camera.
“What happens if you tell Ms. Kincaid?”
Lila whispered:
“She’ll think I’m lying.”
“And if she doesn’t?”
Lila hesitated.
Derek answered for her.
“Then I’ll make sure she loses her job.”
Aaron stopped the video.
Three months earlier.
Derek already knew Valerie Kincaid’s name.
He had selected her long before she noticed Lila limping.
And when police examined Valerie’s school records, they learned why.
Two years earlier, Valerie had filed another child-abuse report involving a different student.
The report had been substantiated.
Derek had researched Lila’s teacher and discovered she was exactly the kind of adult most likely to notice.
Which meant the question was no longer why he threatened Valerie.
The question was why Derek had allowed Lila to remain in her classroom at all.
May you like
Unless he had been planning something else.
Something that required Valerie to become part of the story.
