If I were to cast Hijack on one of my opponent's creatures then, while that creature is under my control for the turn, I cast Blood Divination targeting the creature I took from him/her. Does that creature go into my graveyard( since I control the permanent), or does it go into my opponent's graveyard?

This happened recently while playing with friends and we just decided to put it in the original owner's graveyard.

If I were to cast Hijack on one of my opponent's creatures then, while that creature is under my control for the turn, I cast Blood Divination choosing to sacrifice the creature I took from him/her, does that creature go into my graveyard  (since I control the permanent), or does it go into my opponent's graveyard?

This happened recently while playing with friends and we just decided to put it in the original owner's graveyard.

If I were to cast hijack on one of my opponent's creatures then, while that creature is under my control for the turn, I cast Blood Divination targeting the creature I took from him/her. Does that creature go into my graveyard( since I control the permanent), or does it go into my opponent's graveyard?

This happened recently while playing with friends and we just decided to put it in the original owner's graveyard.

If I were to cast Hijack on one of my opponent's creatures then, while that creature is under my control for the turn, I cast Blood Divination targeting the creature I took from him/her. Does that creature go into my graveyard( since I control the permanent), or does it go into my opponent's graveyard?

This happened recently while playing with friends and we just decided to put it in the original owner's graveyard.