PORTLAND, Ore. (KOIN) – A 39-year-old special physical education instructor, with ties to the Oregon City School District, is in federal custody on an allegation he made child pornography and had detailed notes on how he would drug two children so he could sexually abuse a much younger girl.

James Ian McGlothlin, who lives in Southwest Portland, was arrested Friday evening in the 11800 block of SW Kerr Parkway in Lake Oswego.

Federal officials confirm that while under investigation, McGlothlin was an adapted physical education instructional assistant with the Oregon City School District.

The school district has cooperated fully with federal investigators and has taken steps to notify parents about his arrest. KOIN 6 News has learned once the school district was made aware of the investigation, it suspended McGlothlin on Feb. 16, and prevented him from having access to children.

Investigators told KOIN 6 News they are seeking the public’s help to identify possible unknown minor victims.The investigation

Early Tuesday morning, agents with the U.S. Department of Homeland Security, Homeland Security Investigations (HSI) and the Interagency Child Exploitation Prevention Team (INTERCEPT) searched McGlothlin’s residence in the 3100 block of SW Luradel Street.

According to a federal criminal affidavit filed by HSI Agent Glenn Dimmick, agents found laptop computers, hard drives, thumb drives, CDs, cell phones, a JVC camcorder, an iPad, and digital camera. During their search, agents found a laptop that was “open and running” from a work area in the garage.

McGlothlin’s wife told investigators that the laptop belonged to her husband.

During the initial search, a federal computer forensic agent found images of suspected child pornography on the laptop.

The affidavit also states that during the search, agents found the following items inside a locked filing cabinet next to the laptop in the garage:

A bottle of children’s Benadryl allergy medicine

A latex cast of a child’s hand (with suspected public hair on it)

Eleven pairs of children’s underpants (some of which appeared to have been worn)

Children’s swimsuits

Various digital media

Two photographs of young, prepubescent girls

According to federal court documents, the photos had been “enlarged and were almost life-sized, and had been cut out to include on the girls’ heads and shoulders.” One of the photos was of an 8-year-old.

The children, records show, were known to the McGlothlin family.

Additionally, agents found a “homemade, headless child-size doll made out of cardboard and dressed in children’s clothes” inside the locked cabinet, record show. The doll was wearing a pair of children’s underwear over the top of the clothes.

During a forensic look at some of an external hard drive seized from McGlothlin’s residence, agents found a directory labeled “’C’ (located at root:/Forbidden Hobbies/Greater Portland Area and beyond /C).” Agents found five image files and five video files of a female toddler and an adult male, whose face was not visible, according to the federal affidavit.

Additional files discovered, according to the affidavit included:

A video file seven minutes and six seconds in length

Four freeze frame images of the infant in a state of undress from the video mentioned above

A sexually explicit photo

A sexually explicit video

Agents also found “a short essay” on McGlothlin’s laptop computer “in which McGlothlin graphically relives the sexual abuse of the infant depicted” in the video just mentioned. McGlothlin “finishes the essay by expressing his desire to escalate the sexual abuse of the infant.”

In another essay, McGlothlin writes that he plans to “babysit” three children and that his plans “include drugging the two older children with Benadryl so he can sexually abuse one of the children.”

The affidavit includes a graphic account of McGlothlin’s alleged plan to take photos and videos of the child.

In another essay, McGlothlin details his sexual abuse of a developmentally disabled 12-year-old who was in his care. The child, records show, was in his swim therapy class.A phone call

According to the federal affidavit, investigators on Thursday spoke with a person who told them that after the search warrant was executed at McGlothlin’s residence, she spoke with McGlothlin twice by telephone and that during their conversations he admitted the following:

He was a pedophile

He looked a child pornography

He had a sexual interest in an 8-year-old girl

He had a sexual interest in his friend’s 2-year-old daughter

He had touched the girl while changing her diaper

Records show that some of the photos agents found had been taken inside McGlothlin’s residence. Evidence found inside his garage, including a fitness tracker, matched evidence seen in many of the photos and video.

Agents also spoke with another individual who had also spoken to McGlothlin on the phone following the warrant. That person, according to records, told investigators that McGlothlin admitted to taking nude pictures and video of a child victim.

McGlothlin is being held at the Multnomah County Inverness Jail in Northeast Portland under a federal hold. He is expected to appear in U.S. District Court for the first time on Monday afternoon.

In a prepared statement, officials said the Digital Evidence Cybercrime Unit (DECU), made up of investigators from the Vancouver Police Department and the Clark County Sheriff’s Office “provided substantial assistance with the case.”

INTERCEPT, according to the Clackamas County Sheriff’s website, was launched in October 2007. The team is made up of investigators from the Clackamas County Sheriff’s office, Multnomah County Sheriff’s Office, HSI, Oregon State Police, the U.S. Attorney’s Office, the Federal Bureau of Investigation, and the U.S. Marshals Service.