From their event page: 

Mario D’Adamo III Esq. was struck and killed while riding his bike in FDR Park in August of 2023. Families for Safe Streets Greater Philadelphia, Friends of FDR Park, and the family of Mario will be hosting an event in honor of what would have been Mario’s 38th Birthday and to place a ghost bike for Mario at the crash site. We will then move to the First Tee Space in FDR Park for some refreshments.

We hope you can join us; RSVP requested.