Crime

Brothers plead not guilty in SLO County homicide case

Alejandro Soriano Ortiz, left, and his brother Celestino Soriano Ortiz were arrested on Oct. 11, 2025, in connection to the alleged murder of Isabel Lucas Velasco, believed to be Alejandro’s former girlfriend. They were also both charged in connection to alleged arson of her vehicle.
Alejandro Soriano Ortiz, left, and his brother Celestino Soriano Ortiz were arrested on Oct. 11, 2025, in connection to the alleged murder of Isabel Lucas Velasco, believed to be Alejandro’s former girlfriend. They were also both charged in connection to alleged arson of her vehicle. SLO County Sheriff’s Office

Two brothers accused in the murder of a Coalinga woman and of torching her car pleaded not guilty to all charges on Wednesday.

Alejandro Soriano Ortiz, 45 of Coalinga, and Celestino Soriano Ortiz, 40 of Santa Maria, were both arrested Oct. 11 in connection to the killing of 50-year-old Isabel Lucas Velasco, who had been missing since she disappeared from an Arroyo Grande jobsite about a month ago.

Alejandro Soriano Ortiz was believed to be Velasco’s boyfriend, a court document said.

The brothers allegedly discussed fleeing the country after Alejandro allegedly “beat the living daylight” out of Lucas Velasco, according to court documents.

Lucas Velasco’s purse and identification was found with human remains wrapped in black plastic in a clandestine grave along Highway 198 west of Coalinga. The plastic was consistent with heavy-duty, black trash bags found inside Alejandro’s truck, according to court documents.

According to the complaint filed by the San Luis Obispo County District Attorney’s Office, Alejandro allegedly filed a fraudulent insurance claim after he allegedly murdered Lucas Velasco and set fire to her car. He was charged with murder, arson with the intent to defraud and insurance fraud.

Attorney Kenneth Cirisan, left, interpreter Donette Lancaster and defendant Alejandro Soriano Ortiz, 45, at arraignment in connection to the killing of 50-year-old Isabel Lucas Velasco held in San Luis Obispo Superior Court on Oct. 15, 2025.
Public defender Kenneth Cirisan, left, interpreter Donette Lancaster and defendant Alejandro Soriano Ortiz, 45, at arraignment in connection to the killing of 50-year-old Isabel Lucas Velasco held in San Luis Obispo Superior Court on Oct. 15, 2025. David Middlecamp dmiddlecamp@thetribunenews.com

His brother, Celestino, was also charged with arson with the intent to defraud and accessory after the fact, meaning he is alleged to have helped his brother hide his crimes the complaint said.

Both brothers were also charged with forging a United States Permanent Resident Card, also known as a green card, which included a counterfeit government seal, the complaint said.

Immigration and Customs Enforcement had issued detainers for both men to the San Luis Obispo County Sheriff’s Office. Murder and arson are exceptions to the state law that prohibits local law enforcement from cooperating with ICE detainers.

In the San Luis Obispo County Superior Court on Wednesday, both brothers entered not guilty pleas and denied any advancements.

They will be required back in court on Nov. 20 at 8:30 a.m. in Department 6 for a pre-preliminary hearing.

Public defender Earl Conaway, left, defendant Celestino Soriano Ortiz, and interpreter Abraham Sanchez at arraignment in connection to the killing of 50-year-old Isabel Lucas Velasco in San Luis Obispo Superior Court on Oct. 15, 2025.
Public defender Earl Conaway, left, defendant Celestino Soriano Ortiz, and interpreter Abraham Sánchez at arraignment in connection to the killing of 50-year-old Isabel Lucas Velasco in San Luis Obispo Superior Court on Oct. 15, 2025. David Middlecamp dmiddlecamp@thetribunenews.com
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Chloe Shrager
The Tribune
Chloe Shrager is the courts and crimes reporter for The Tribune. She grew up in Palo Alto, California, and graduated from Stanford with a B.A. in Political Science. When not writing, she enjoys surfing, backpacking, skiing and hanging out with her cat, Billy Goat. Support my work with a digital subscription
Chloe Jones
The Tribune
Chloe Jones is a former journalist for The Tribune
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