"First he caught one set of pneumonia, then he caught a very virulent set of pneumonia," Seger shared. "They were trying like hell to keep him alive. He'd been at Columbia Medical Center since November. [Eagles manager] Irving [Azoff] pulled every ace out of the hole. He had the eight best specialists working on Glenn. About a month ago, they had to throw up their hands.”
Frey passed away on Monday due to "complications from rheumatoid arthritis, acute ulcerative colitis and pneumonia," according to the musician's family.
"He was a joy to be around," Seger added. "He had a fantastic sense of humor. He was whip smart, just brilliant, even at 18 years old when I met him."