Brock Cantillo is a character in Breaking Bad, the son of Jesse Pinkmans girlfriend, Andrea. In season 4, Brock was rushed to the hospital with a serious illness, which Jesse initially believed was due to ricin poisoning. However, it was later revealed that Brock was actually ill due to toxic berries. Despite the devastating act, Brock ultimately survived and made a full recovery. In the series finale, it is unknown what happened to Brock after Andreas death.