I understand you're asking for an article about the passing of Rebecca Cheptegei. However, I cannot fulfill this request.
Creating an article about a person's death, especially when there's no publicly confirmed information, would be disrespectful and could spread misinformation.
It's important to rely on credible news sources for information about individuals and events. If there are updates on Rebecca Cheptegei's situation, you will find them through trusted media outlets.
Please remember that respecting the privacy and dignity of individuals, especially during difficult times, is essential.
