Dave Davies provides a live update on the search for a man who allegedly killed six people in Montgomery County this morning. Taunya English reports Medicaid incentives have boosted dental checkup rates among minorities. Todd Bookman reports on an outbreak of Mumps in the NHL. Keystone Crossroads’ Irina Zhorov looks at what Pittsburgh is doing to attract more immigrants. Franklin Institute Chief Astronomer Derrick Pitts joins us to preview Winter Solstice. And Chris Satullo says the hit podcast “Serial” is wildly entertaining, but seriously flawed.