Now therefore, my lord, as Yahweh lives, and as your soul lives, seeing Yahweh has withheld you from blood guiltiness, and from avenging yourself with your own hand, now therefore let your enemies, and those who seek evil to my lord, be as Nabal.
He was so angry and so upset in what she did, he just froze. His heart died within him, and actually he probably had a heart attack.