He had cut open a woman investment banker's chest and removed her heart.

Sapphire won't let Choppy remove her blue boy's heart, however.

"He took off his glove before he removed her heart."

The king told her to remove her mother's heart and bring it to him still beating.

Horde cut Wolverine down, and removed his heart as a trophy.

Now what I am about to do is remove your heart.

"When Chen removes Fox's heart, you'll be able to experience it first hand."

Until they removed his heart, he was alive.

That explained why he was still alive after he removed his heart.