Incident Date: 4/22/23

City: Ivanhoe

Posted by: Media Relations

Ivanhoe Man Arrested for Threatening TCSO Deputy, Detectives Find Body Armor, Guns, Ammo & More in His Home

A Tulare County Sheriff’s Deputy received death threats on his Sheriff’s Office email account on the weekend of 4/22/23. During their investigation, Detectives determined 29-year-old Damien Gruenberg of Ivanhoe was responsible for sending the emails. He was tracked down and arrested at his home. At the time of his arrest, Gruenberg was armed with an unserialized pistol (ghost gun) and had an AR-15 within his reach. The AR-15 was also a “ghost gun” and was loaded with a 60 round magazine. Detectives served a warrant at Gruenberg’s home and found numerous high-capacity magazines with armor-piercing ammunition, body armor, firearm manufacturing “jigs” and multiple computers. Gruenberg is already prohibited from having guns due to a previous criminal conviction. He was booked at the Adult Pre-trial Facility for Terrorist Threats and numerous firearm-related felonies.

Anyone with additional information is encouraged to contact Detective Chris Tyson or Sergeant Daniel Balderas with the Tulare County Sheriff's Office at (559) 733-6218. Or, they can remain anonymous by calling or texting (559)725-4194 or through email at tcso@tipnow.com.