SANFORD, Fla. (AP) — A family spokesman says slain Florida teenager Trayvon Martin was suspended from school last month for having a baggie that contained marijuana residue in his book bag.

Spokesman Ryan Julison says Martin’s parents believe the suspension has nothing to do with his killing Feb. 26 by neighborhood watch volunteer George Zimmerman. Zimmerman has not been charged and claims self-defense.

The 17-year-old Martin was visiting the central Florida town of Sanford while he was suspended by Miami-Dade schools. He was unarmed.

His killing has ignited racial tensions. Martin was black; Zimmerman’s father is white and his mother Hispanic.

Also Monday, state Department of Juvenile Justice confirmed that Martin does not have a juvenile offender record. The information came after a public records request by The Associated Press.