San Diego's Rob Stone sat with iHeart sister station in LA, Real 92.3 to clarify his where abouts on the night Xxx was attacked on stage at North Park venue.  

Rapper #robstone says he wasn't the one who knocked out #xxxxtentacion on stage in #sandiego (vid @real923la)

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In case you missed it...

COMPLEX gave the back story on how this beef between Rob Stone and Xxxtentacion began.