EUCLID -- Veteran firefighter Steven Knaus passed away Friday evening at Euclid Hospital at the age of 47.
Though the Cuyahoga County Medical Examiner has not yet released a cause of death, it is believed to be natural causes.
Knaus was a part of the Cleveland Fire Department for 23 years. He worked at Station #31 on E. 152nd St. and St. Clair.
Cleveland Fire spokesman Larry Gray said that Knaus was "a great guy who the whole department is mourning."