Man prepped numerous fraudulent tax returns before trying to murder son in Vancouver

PORTLAND, Ore. (KOIN) -- A Vancouver man who admitted to trying to murder his son earlier this year pleaded guilty to prepping numerous of fake tax returns for his clients on Friday.

Keith Altamirano, 52, who operated Integrity Investments, LLC, doing business as “Servicios Latinos," will be sentenced for his federal crimes in December.

Between 2017 and 2021, Altamirano prepared fraudulent tax returns for dozens of clients.

"Altamirano falsified clients’ income tax submissions by listing fake medical expenses, and charitable donations for deductions, listing fake cars for depreciation and expense deductions, and by listing fabricated and inflated business expenses," officials said. "Altamirano concealed his fraud by using 'White Out' and omitting his name on his clients’ filed returns. The clients did not know Altamirano falsified their tax return to get them a larger refund. Altamirano’s fraud helped build his business as customers recommended him to others to get larger refunds."

"A statistical sampling analysis reveals that his false entries on customer tax returns cost the U.S. Treasury more than $5 million in tax loss."

However, Altamirano confessed to more serious crimes earlier this year.

In February, Vancouver police responded to a hit-and-run involving a yellow motorcycle and a white Audi. Investigators discovered the Audi belonged to Altamirano and that his son, Chris, was seriously injured while driving the motorcycle.

According to court documents, Altamirano was not at the scene but police found thousands of dollars of the floor of the Audi. After police identified the vehicle as belonging to Altamirano, they later located him and questioned him.

"He claimed (the money) was from his business and had been in his office that day. He did not have any evidence Christopher had stolen the money but he believed it was him because he (said) Christopher was a criminal," court documents say.

Documents also reveal a family member later told police that Altamirano "ran over Christopher with the Audi because he was upset with him."

After his arrest, the officer said he found $10,000 and a large amount of drugs on him.

He eventually pleaded guilty to attempted murder, hit-and-run, and possession of cocaine and fentanyl.