National radio host Michael Savage called for a serious federal investigation concerning the tragic and sudden death of the U.S. Supreme Court’s Associate Justice Antonin Scalia.

“We need a Warren Commission-like federal investigation,” Savage proposed. “This is serious business.”

The radio host also said that Scalia’s body should be autopsied as soon as possible to trace possible causes of his death, other than the reasons given out by authorities.

Michael Savage: ‘Was Scalia murdered?’ https://t.co/9BaJO4CcU7 pic.twitter.com/80ns8YcY3J

— The Washington Times (@WashTimes) February 16, 2016

Savage also mentioned that there was no medical representative at the scene when a U.S. Marshal declared by telephone that the Supreme Court judge was dead. He also emphasized that President Barack Obama appointed the marshal.

In his radio show, Michael Savage also connected Scalia’s death to his previous stance against the White House. Scalia, 79, was a crucial factor in the Supreme Court temporarily blocking the Obama administration rules that limit greenhouse gas emissions from power plants.

Savage also pointed out that something is off with the ranch owner’s description of Scalia when they found him.

“We discovered the judge in bed, a pillow over his head. His bed clothes were unwrinkled. He was lying very restfully. It looked like he had not quite awakened from a nap,” said John Poindexter, who is the owner of the Cibolo Creek Ranch where the associate judge stayed over the weekend.

A look at the Texas ranch where Justice Antonin Scalia died https://t.co/DGUeUCp7La pic.twitter.com/DK6SLQV5MR

— The New York Times (@nytimes) February 15, 2016

He later clarified that the pillow was “over his head,” and not “over his face.”

Michael Savage finally asks Republican presidential frontrunner Donald Trump to share what he thought about the issue.

Still, Trump gave a safe answer and replied that while the news is indeed horrible for the judiciary branch of the government, he couldn’t give an answer yet about possible foul play.

Donald Trump’s spreading conspiracy theories that late Justice Antonin Scalia was murdered https://t.co/a1AeJmeIve pic.twitter.com/NJEiNYhMOd

— Boing Boing (@BoingBoing) February 17, 2016

The late judge Scalia was the longest-serving justice of the U.S. Supreme Court. He was appointed by former President Ronald Reagan in 1986, and has since become the SC’s conservative voice.

President Reagan announcing SCOTUS nomination of Antonin Scalia, 1986: #AP pic.twitter.com/KWk8QuvL9Y

— Michael Beschloss (@BeschlossDC) February 16, 2016