The following is via YWN: HaGaon HaRav Chaim Kanievsky Shlita during the night of Hoshana Raba explained we cannot know HKBH’s cheshbonos and we can only daven the victims will be a kapora for Klal Yisrael.
Persons close to the rav gave him the name of Mrs. Adele bas Miriam Benito, the widow of R’ Aaron, who was murdered in the motzei Shabbos attack. She is recuperating from her moderate-to-serious injuries sustained in the attack in a Jerusalem hospital. Rav Chaim gave her a bracha for a complete recovery. The Gadol HaDor is quoted adding “One may visit Yerushalayim during Yomtov but one must not come near to the Old City until the situation calms down”.
Rav Kanievsky’s words have been echoed by a number of admorim including the Gerrer Rebbe Shlita and the Boyaner Rebbe Shlita. The Boyaner Rebbe was visibly pained to the core as he was maspid the victims to his chassidim, explaining they were killed ‘Al Kiddush Hashem’ as they made their way to the Kosel.
The same instructions to chassidim were heard from the Vishnitzer Rebbe Shlita, instructing them to distance themselves from the Old City in the coming days until the security situation calms down. Sources in the chassidus explain the rebbe has canceled his traditional motzei yomtov visit to the Kosel due to the situation.