<P> Jackson `` Jax '' Teller was the son of Gemma and John Teller and was born in 1978 , and raised in Charming , California . His father died in 1993 and his mother remarried Clay Morrow , who then became President of the Sons of Anarchy Motorcycle Club Redwood Original ( SAMCRO ) . He lives with the genetic heart disorder ( `` family flaw '' as Gemma calls it ) that his brother Thomas `` Tommy '' Teller ( January 8 , 1984 -- April 4 , 1990 ) died from at the age of six . He carries a USMC KA - BAR fighting knife although his dad served in the United States Army ( 25th infantry division ) . </P>
<P> Jackson `` Jax '' Teller was the son of Gemma and John Teller and was born in 1978 , and raised in Charming , California . His father died in 1993 and his mother remarried Clay Morrow , who then became President of the Sons of Anarchy Motorcycle Club Redwood Original ( SAMCRO ) . He lives with the genetic heart disorder ( `` family flaw '' as Gemma calls it ) that his brother Thomas `` Tommy '' Teller ( January 8 , 1984 -- April 4 , 1990 ) died from at the age of six . He carries a USMC KA - BAR fighting knife although his dad served in the United States Army ( 25th infantry division ) . </P>
who is jax 's brother on sons of anarchy
who is jax 's brother on sons of anarchy
Thomas `` Tommy '' Teller
Thomas `` Tommy '' Teller