Aaron Shaw

Aaron Shaw is Sloane's half brother. Sloane is aware of his existence, but not sure if he knows who she is. She desperately hopes that he will like her.

All In
After Michael finds a tattoo with numbers on his wrist, the Naturals and FBI believe that Michael is the Unsubs next target. If this killing is successful, the Naturals believe that it will end the Unsubs killing spree cycle and be what the Unsubs views as "the greatest sacrifice."

It's later revealed that Michael was only an intended distraction for the Unsubs and Aaron was the intended victim.

After Aarons death, Sloane immediately starts to analyze the crime scene. (Part of her believes that because of this she isn't his sister anymore) Michael feels guilty and believes that he is the one who should have died in place of Aaron. Though Sloane doesn't want to lose Michael either.