Salaam
Sorry to hear , for your friends loss , may his soul rest in peace , ameen 
But my friend if he was racing on streets , then it was his fault ,
ABS or no ABS an experienced driver knows the limits of braking and brake lock
, ABS only aids on in braking which could be ALMOST replicated by a driver if he is experienced
note: (replicate in terms of stopping power, not the action of ABS system )
bye.