The father of a California man allegedly killed by an illegal alien wants to make sure that President Donald J. Trump knows that his son was a “true patriot" who was murdered because of inadequate border control policies.

On February 25, 2018, San Diego Police arrived at a local gym where they found Alexander Mazin, 27, bleeding to death from a gunshot wound in the torso. The suspect has not been caught, but is believed to be an illegal alien named Ernesto Castellanos Martinez.

In 2004, Castellanos voluntarily agreed to self-deport after a prior run in with the law, but he either came back in the United States after leaving or never actually left.

Castellanos was not a total stranger to Mazin. His family said, "Castellanos had previously been in a relationship with Mazin’s girlfriend of three months. Two weeks before the shooting, Castellanos had attacked the woman while she was working out with Mazin at a gym, Mazin’s parents said,” reports 10 News.

Mazin’s mother noted the ominous threat against her son that Castellanos had given the woman in question just weeks before the murder.

“The murderer called his ex and said, ‘you can head to the parking lot and watch me kill him in front of you.’ That’s the man we are dealing with,” said Mrs. Mazin.

The man’s father had a special message for the President of the United States.

“This man could be hiding under a rock. In a cave. This man could be hiding in plain sight,” said Mr. Mazin.

“I want President Trump to know about this,” Mr. Mazin told 10News. “I want him to be aware there was a true patriot, a wonderful human being that was an exemplary citizen that was lost because of this problem with our border.”

Not surprisingly, this case has stirred emotions amongst those who support illegal immigration.

“Someone is going to commit a crime whether they are undocumented here or not,” said Dulce Garcia, a DACA recipient and immigration attorney.

There is currently a $9,000 reward for any information leading to the arrest of Ernesto Castellanos Martinez.

Photo screenshotted from sdcrimestoppers.org.