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Press Release

Tampa Dentist Charged With Sending Threats Of Death And Injury To Multiple Victims

For Immediate Release
U.S. Attorney's Office, Middle District of Florida

Tampa, FL – United States Attorney Roger B. Handberg announces the return of an indictment charging Richard Glenn Kantwill (60, Tampa) with three counts of interstate transmission of a threat to injure. If convicted on all counts, Kantill faces a maximum penalty of 15 years in federal prison.

According to the indictment and court documents, between August 2019 and July 2020, Kantwill sent threats to approximately 42 different victims. Kantwill used email, social media, and text messages to threaten injury and death to various victims. During that time frame, Kantwill sent approximately 100 threats and various other disturbing messages.

The following is an email Kantwill sent to Victim 1, as alleged in the indictment:

Exhibit 1

The indictment charges Kantwill with sending the following message to Victim 2:

Exhibit 2

The indictment also charges Kantwill with sending the following to Victim 3:

Exhibit 3

An indictment is merely a formal charge that a defendant has committed one or more violations of federal criminal law, and every defendant is presumed innocent unless, and until, proven guilty.


This case was investigated by the Federal Bureau of Investigation. It will be prosecuted by Assistant United States Attorney Abigail K. King.


Updated June 20, 2024