The Grateful Dead celebrates 50 years since the band's start this year.
The Connecticut state legislature opens a new session this week, less than a month after the horrific mass shooting that killed 20 children and six adults at Sandy Hook Elementary School in Newtown, Conn.
On top of the regular agenda, lawmakers are expected to offer many proposals to address gun violence, including an outright ban on the Bushmaster rifle and 30-round magazine used in the massacre.
ProPublica reporter Joaquin Sapien has taken a look at the states where some of the worst shootings in recent U.S. history have occurred, and found the events did little to change state gun laws.
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