If Jesus died for all sins, what morality stop his followers from committing heinous crimes?
Those that have trust in Christ Jesus to the saving of their souls; they will have to stand before the judgment seat of Christ and give an account of their lives. There are rewards to be had and to lose.
2 Corinthians 5:10 For we must all appear before the judgment seat of Christ; that every one may receive the things done in his body, according to that he hath done, whether it be good or bad.
1 Corinthians 3:11-15 For other foundation can no man lay than that is laid, which is Jesus Christ. 12Now if any man build upon this foundation gold, silver, precious stones, wood, hay, stubble; 13Every man's work shall be made manifest: for the day shall declare it, because it shall be revealed by fire; and the fire shall try every man's work of what sort it is. 14If any man's work abide which he hath built thereupon, he shall receive a reward. 15If any man's work shall be burned, he shall suffer loss: but he himself shall be saved; yet so as by fire.
I cannot speak to the rewards and loss, but they will be great. Many shall be ashamed on that day that they had done nothing worthy of a reward. Many will have the blood of those they could have witness to but did not.
Ezekiel 3:18-21 When I say unto the wicked, Thou shalt surely die; and thou givest him not warning, nor speakest to warn the wicked from his wicked way, to save his life; the same wicked man shall die in his iniquity; but his blood will I require at thine hand. 19Yet if thou warn the wicked, and he turn not from his wickedness, nor from his wicked way, he shall die in his iniquity; but thou hast delivered thy soul. 20Again, When a righteous man doth turn from his righteousness, and commit iniquity, and I lay a stumblingblock before him, he shall die: because thou hast not given him warning, he shall die in his sin, and his righteousness which he hath done shall not be remembered; but his blood will I require at thine hand. 21Nevertheless if thou warn the righteous man, that the righteous sin not, and he doth not sin, he shall surely live, because he is warned; also thou hast delivered thy soul.
I may be saved, sealed, and justify, forever, but the fear of that day is enough motivation to keep me judging what I do.