President Trump suggested on Wednesday that MSNBC host Joe Scarborough should be investigated for murder.

“So now that Matt Lauer is gone when will the Fake News practitioners at NBC be terminating the contract of Phil Griffin? And will they terminate low ratings Joe Scarborough based on the ‘unsolved mystery’ that took place in Florida years ago? Investigate!” Trump tweeted Wednesday morning.

In 2001, when Scarborough was a GOP congressman from Florida, his 28-year-old intern Lori Klausutis was found dead behind a desk in his district office.

An investigation found no evidence of foul play, and the medical examiner ultimately determined that she passed out because of a heart condition and hit her head on a desk, according to the St. Petersburg Times.

Scarborough, who was never a suspect in the investigation, took Trump’s accusation in stride.

“Looks like I picked a good day to stop responding to Trump’s bizarre tweets. He is not well,” he wrote on Twitter.

His brother, George Scarborough, was quick to defend him, and demanded an apology from Trump.

“Outrageous reference re @JoeNBC where @potus @realDonaldTrump just crossed the line with me. I need to see a public apology to my brother Joe or else he has lost my support for good … which is saying a ton given all the support I’ve shown him in past 2 years,” he wrote.