Germanwings co-pilot rehearsed crash on previous flight: report. (NBC News)
Surveillance planes spotted in the sky for days after West Baltimore rioting. (Washington Post)
Attorney for Baltimore officer wants to see the knife Freddie Gray was carrying. (Washington Post)
A gun from Georgia is linked to a New York Police officer's death, again. (New York Times)
Eric Garner case prosecutor is elected to Congress. (New York Magazine)
Texas attacker left trail of extremist ideas on Twitter. (New York Times)
Britain's closest election in a generation goes down to the wire. (Reuters)
What are you reading this morning? Let us know in the comments, please.