Will Allah forgive the servant who committed the abomination of sexual assault against a helpless person who later died, while feeling extreme remorse and diligently performing acts of worship, and what will be his standing on the Day of Judgment?

The questioner is congratulated on their commitment, their realization of the gravity of sin, and their desire to repent. It is affirmed that Allah forgives those who repent sincerely and amend their ways, with evidence from verses of the Holy Quran and prophetic traditions. As for the right of the creature, Allah may take charge of restoring the injustice. It is advised to increase good deeds and prepare for the hereafter. Also, one must conceal their own sins and the sins of those involved, not disclose them to anyone, and not despair of Allah's mercy.