Pennsylvania teen, 15, charged after stabbing his siblings, ages 13 and 9, prosecutors say

A 15-year-old Pennsylvania boy is facing multiple charges Wednesday after allegedly stabbing his brother more than a dozen times, as well as his own 9-year-old sister, in a knife attack at an elementary school playground, according to investigators.  Hatfield Township Police say they were called to the scene at Oak Park Elementary School around 5:20 p.m. Monday after receiving a 911 call from