Clayton Beathard, the 22-year-old brother of San Francisco 49ers quarterback C.J. Beathard, was one of two men stabbed to death early Saturday outside of a Nashville bar, The Tennesseean reports.

Paul Trapeni III, 21, of Williamson County like Beathard, also died from wounds suffered in the stabbing on 1903 Division Street, outside of Hopsmith Tavern and The Dogwood in Midtown.

Beathard, who played football at Long Island University and Battle Ground Academy, was the son of country music songwriter Casey Beathard and grandson of NFL Hall of Famer Bobby Beathard, who won four Super Bowls as a general manager, according to the newspaper.

"The fatal stabbings appear to have resulted from an argument over a woman that began inside Dogwood Bar and then turned physical when the parties went outside," MNPD wrote in a press release after the incident. Multiple persons were involved in the outdoor fight during which the two men were both fatally stabbed in their sides. A third stabbing victim, a 21-year-old man, was treated and released."

An investigation is ongoing and no arrests have been made, according to Metro Nashville Police Department Cpt. Harmon Hunsicker.

"Midtown Hills Precinct Detectives are working the case," Hunsicker told the newspaper. "They have some leads, and seeking information from anyone witnessing or having information about the incident."

C.J. Beathard, 26, starred at Iowa before he was drafted in third round in 2017. He is a former All-Big Ten selection and has made 10 career starts with the 49ers in the NFL. During his first season as a starter for the Hawkeyes in 2015, Beathard led Iowa to a perfect 12-0 regular season before a loss to Michigan State in the Big Ten title game kept his team out of the College Football Playoff.

Iowa went 8-4 the following season during Beathard's finale in Iowa City before the start of his NFL career.