An otherwise serious discussion of the Oscar Pistorius murder trial on Good Morning America today barely managed to finish without Nancy Grace hijacking it to talk about the amputee sprinter's porn habits.

That Pistorius was looking at porn the night he killed girlfriend Reeva Steenkamp is not exactly new information; that information came out more than a month ago. So it's unclear why Nancy Grace is harping on it here, and it's clearly to the dismay of ABC legal expert Dan Abrams and host Josh Elliott.

Nancy Grace Derails Oscar Pistorius Analysis With Porn Obsession

POOOOOOOOOOORN, DAN. PORN. PORN.

h/t to Jonathan