Building a Better Philadelphia

• Philadelphia DA launches investigation into Malayshia Alford's death

  

• Loophole in foster system may have led to Malayshia Alford's death, expert says

  

• Hundreds of "Rocky" fans set Guinness World Record in Philadelphia

  

• Flight cancellations, delays linger after nationwide ground stop impacts Philadelphia International Airport

  

• Names of Brooklyn building collapse victims released

  

• Video taken inside apartment shows Brooklyn building collapse

  

• Woman who lived in collapsed Brooklyn building: "They killed us"

  

• People reportedly tunneling into Pittsburgh apartment building's basement