How to use "clutching" in a sentence

He rammed his knee into his adversary's crotch and tore the gun out of the bear-paw hand as those clutching fingers went slack

Elliot scanned the night, his heart clutching up

Danny became excited when he saw her drawing near, and in spite of his terrible condition, he shakily thrust himself into a sitting position, clutching at the bed rails with one frail, trembling hand, eagerly extending his other hand toward her.