The morning after Christmas 2016, William Jackson was sitting on his porch, eating cereal and chatting with a neighbor.

The neighbor went inside for coffee and then, according to a San Bernardino County deputy district attorney, witnessed a person firing a shotgun at Jackson, who then lay dying in the street with his cereal on the ground.

Next the neighbor saw the distinctively tattooed shooter with trash bags in his car drive away from the 1900 block of East 19th Street neighborhood in San Bernardino.

That shooter, gang member Isaac Castillo, 29, of San Bernardino, was sentenced Monday, Feb. 5, to serve 205 years to life in state prison by Judge Harold T. Wilson Jr. in San Bernardino County Superior Court on Monday, Feb. 5, according to a district attorney’s news release.

No motive has ever been determined in the shooting, authorities said.

“The lack of a clear motive is the saddest part of this case,” Deputy District Attorney Jason Liso, who prosecuted the case, said in a release. “It makes no sense why this poor man would have been shot. This killing was utterly senseless.”
William Edward Jackson (Courtesy photo)
William Edward Jackson (Courtesy photo)
Jackson, 52, suffered from mental disabilities and had special needs.

Two days after the shooting, Castillo showed up at his girlfriend’s house in an “agitated state” with a shotgun and broke a window to gain entry to the home, holding his girlfriend and her cousin at gunpoint when police arrived, according to the news release.
The cousin escaped and was rescued by a sheriff’s deputy but the girlfriend remained inside until the standoff with a sheriff’s SWAT team ended more than eight hours later, authorities said at the time.

Investigators later determined that a sawed-off shotgun stolen from the girlfriend’s uncle on Christmas Day was used in the murder. Castillo had been driving a black four-door Honda Accord with large trash bags in the backseat, matching the vehicle description given by Jackson’s neighbor.

A San Bernardino County Superior Court jury convicted Castillo on Jan. 5 of murder, possession of a firearm by a felon, first degree burglary, two counts of criminal threats and two counts of false imprisonment.

The jury also found true multiple allegations of gun use, convictions that can be used to lengthen a prison sentence.

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