A California man was sentenced to life in prison on Friday for the premeditated killing of his parents, executing a plot driven by resentment and a desperate bid to seize their estate after he ran out of money from scamming friends and family, according to the Los Angeles Times.
Sacramento County Superior Court Judge Michael Bowman handed down the life sentence to 46-year-old Mark Andre Tomas Navarrete following a jury’s decision last month finding him guilty of two counts of first-degree murder for financial gain, prosecutors said. His father, Augusto Tacsuan Navarrete, was 73, and his mother, Marjorie Jane Tomas Navarrete, was 70.
Investigators with the Elk Grove Police Department detailed how Navarrete had spent months running fraudulent investment schemes that promised victims repayment alongside exorbitant interest rates. When his aging parents intervened by stepping in to pay back family members out of their own pockets for his mounting debts, Navarrete turned against them to secure their wealth for himself, prosecutors said.
At the time of the murders, Navarrete stood to inherit half of the couple’s estate, according to the Sacramento County district attorney’s office, though officials did not publicly elaborate on the precise valuation of the family’s assets.

The June 2024 Attack in Elk Grove
The methodical attack unfolded in June 2024, when Navarrete drove from his Elk Grove residence to his parents’ neighborhood, leaving his vehicle parked several blocks away, prosecutors said. Donning a mask and gloves, he rode a scooter the remaining distance to the family home.
To avoid detection, prosecutors said Navarrete bypassed the front door’s Ring camera by utilizing a side gate to enter through the backyard. Inside the garage, he struck both of his parents on the head before strangling them to death.
Following the killings, Navarrete drove away in his parents’ vehicle, parked it near where he had left his own car, and abandoned the scene, according to court documents. Later that same morning, prosecutors said, he sent text messages to his parents asking if they wanted to come over for dinner.
Police Use DNA and Surveillance to Solve Crime
The plot unraveled after Navarrete’s sister grew concerned when she could not reach her parents by phone. Prosecutors said Navarrete went to the home alongside his own children and staged a theatrical discovery of the bodies.
Elk Grove police detectives located the scooter used in the crime inside Navarrete’s garage, and forensic testing uncovered his DNA underneath his mother’s fingernails, prosecutors said.
Investigators cracked the case by relying heavily on modern surveillance infrastructure. The Elk Grove Police Department utilized automated Flock safety cameras and broader traffic monitoring footage to track Navarrete’s movements throughout the neighborhood before and after the murders.
The Sacramento County Superior Court formally concluded the criminal proceedings with Friday’s sentencing, locking in a life term without the possibility of an early release for financial enrichment.