Subscribe for 33¢ / day

A Rapid City man who is awaiting sentencing for his role in a nearly $17 million medical laser scheme has been arrested and is in jail for allegedly violating the conditions of his release.

Larry Lytle, 83, was booked into the Pennington County Jail at 3:15 p.m. Wednesday. Federal court records say the arrest was made pursuant to a report of an apparent violation of Lytle's pretrial release conditions. 

The records pertaining to the arrest do not specify the nature of the violation, but other public records in Lytle's case file show that he recently sent an allegedly threatening letter to a prosecutor.

Lytle pleaded guilty in January to the crimes of contempt and conspiracy. He admitted that beginning in 2005 and continuing through 2015, at least $16.67 million worth of his laser devices were sold without scientific evidence of their effectiveness and without adequate clearance from the FDA. In marketing materials, Lytle claimed the devices could treat hundreds of medical conditions ranging in severity from headaches to AIDS.

Get news headlines sent daily to your inbox

Lytle's arrest came just days ahead of his scheduled sentencing, and the warrant for his arrest said he is to remain jailed pending a sentencing hearing scheduled for next week. 

Earlier this week, Lytle filed a motion attempting to withdraw his guilty plea and fire his lawyer. 

Contact Seth Tupper at

You must be logged in to react.
Click any reaction to login.

Enterprise Reporter

Enterprise reporter for the Rapid City Journal.