Teacher Ashling, from Tullamore, Co. Offaly was murdered on Wednesday.
The 23-year-old had gone for an afternoon run when her killer struck.
The vigil in Derry was staged by Alliance for Choice at 4pm on Friday and a large crowd attended.

21. Ashling Murphy death
Undated handout photo issued by Comhaltas Ceoltoiri Eireann of Ashling Murphy, a primary school teacher in Tullamore aged in her 20s, who was killed on Wednesday afternoon along the banks of the Grand Canal at Cappincur, Co Offaly. Issue date: Thursday January 13, 2022. Photo: PA Wire
6 / 6