Morning news: Happy Earth Day!

Obama heads to Iowa
Makes pitch for renewable energy on Earth Day [Des Moines Register]

Freddie Mac CEO found dead
Apparent suicide [WaPo]

More on alleged Craigslist Killer
Police claim he had gambling problems [Boston Globe]

Report: Fairey prosecutor works at bar showcasing Fairey's work
His night job - according to this blog - is at Tory Row in Harvard Square [Daily Red]

Barbecued meat linked to cancer
Noooooooo! [HealthKnowItAll.net]

Bruins. Tonight.
Going for the sweep of Canadiens [Boston Globe]