Tom MacDonald reports on how the city of Philadelphia is targeting dangerous buildings for demolition. Katie Colaneri heads to Brewerytown to hear how the public feels about the democratic mayoral candidates. Mary Wilson brings the story of one man fighting for a fix to Pennsylvania’s pension problem right outside lawmakers’ cafeteria. Dave Heller speaks with WHYY’s social media strategist Amy Quinn about trendy phone apps being used on the campaign trail. In this month’s edition of Story Corner, violinist Gergana Haralampieva recalls a strange encounter with a homeless man as a child that reminds her of the joy of music to this day.