GRESHAM, Ore. (KATU) — A high school teacher in Gresham was indicted on multiple child sex crimes following an undercover online sting operation.

The investigation started back in December 2024 after an undercover police officer in Bothell, Wash., who was posing as a 13-year-old girl, began communicating with 36-year-old Oscar Armando Ramirez of Portland.

The chats took place over four days, during which Ramirez is alleged to have engaged in lewd conversation about acts he wanted to perform on the “teen.” Also during the chats, investigators said Ramirez also shared that he taught 9th-11th graders.

Eventually, Ramirez and the undercover officer arranged to meet when the “teen’s” parents were out of town.

Bothell Police notified Portland Police about the interactions. PPB officials the

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