Conversation so far:
What started the feud between Erich and the Fabulous Freebirds?
On June 17, 1983, Kerry Von Erich teamed with Bruiser Brody to defeat the Fabulous Freebirds for the NWA American Tag Team Championship.
When did Kerry Von Erich receive the american heavyweight championship title?
On December 28, 1980, his first NWA American Heavyweight Championship reign came after he defeated Gino Hernandez for the vacant title
Who did Kerry Von Erich compete against for the American Heavyweight Championship?
On December 28, 1980, his first NWA American Heavyweight Championship reign came after he defeated Gino Hernandez for the vacant title
Did anyone take the American Heavyweight Championship from Kerry Von Erich during that time between 1980-1983?
He lost the title to Ken Patera before winning his second NWA American Heavyweight Championship from The Masked Superstar
What happened with Kerry Von Erich and the Fabulous Freebirds?
On June 17, 1983, Kerry Von Erich teamed with Bruiser Brody to defeat the Fabulous Freebirds for the NWA American Tag Team Championship.

Question: Who defeated the Freebirds with him?
Self-contained rewrite: Who defeated the Freebirds with Kerry Von Erich?