TULSA, Okla. — Quick Facts:
- Ron Helus -- the sergeant killed in the mass shooting in Thousand Oaks, California Wednesday night -- is a University of Oklahoma alum.
- READ MORE: 12 killed, including deputy, at California bar; suspect also dead
- Helus died while responding to reports of the shooting, according to deputies.
- He is one of 12 people killed in the shooting. The gunman is also dead.
- READ MORE: Thousand Oaks shooting: What we know about the victims
- Helus graduated from Oklahoma with his masters in 2016.
- Reports say the 29-year veteran was one year away from retirement.
- READ MORE: Deputy killed was preparing for retirement
The University's alumni Twitter account tweeted in response to Helus's death:
- Thousand Oaks shooting: 12 killed, including deputy, at California bar; suspect also dead
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