A 65-year-old Cobb County man was charged with homicide and aggravated assault after calling 911 Thursday night and allegedly indicating he had fatally shot his roommate.

Dennis Robert Bredar was being held Friday without bond at the Cobb County Adult Detention Center, according to police spokesman Sgt. Dana Pierce.

Pierce said the killing of Rhonda Callihan, 49, occurred around 7:45 p.m. on Jamerson Forrest Circle in Marietta. Callihan was found dead inside the home. Police said they found Bredar sitting in a chair on the front porch.

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Savannah Chrisley, daughter of former reality TV stars Todd and Julie Chrisley, speaks outside the Federal Prison Camp on May 28, 2025, in Pensacola, Fla. President Donald Trump pardoned Todd and Julie Chrisley, who were found guilty of defrauding banks out of $36 million and hiding millions in earnings to avoid paying taxes. (Dan Anderson/AP)

Credit: Dan Anderson/AP