Here's your daily look at five stories we're following:
1. Market Street retail: Developers plan to demolish stores on Market Street between 11th and 12th streets, replacing them with a new retail and residential complex to be called East Market.
2. Missing Malaysian flight: Malaysian officials announced today that files were recently deleted from the home flight simulator that belonged to the pilot of the jetliner carrying 239 people that's now been missing since March 8.
3. Dropped probe fallout: Some political analysts say Pennsylvania Attorney General Kathleen Kane's decision to drop a probe that reportedly caught at least five Philadelphia Democratic public officials taking money or gifts may lead people to believe she went easy on members of her own party. Meanwhile, a good-government activist has filed ethics complaints against the officials ensared in the sting.
4. St. Joe's enrollment: As St. Joseph's University makes its admissions decisions this spring, the Catholic university will accept 1,500 freshmen for the fall semester, 225 more than last year. Faculty and students are concerned the plan -- which will bring more money to the university, will also make the school less selective and lead to larger class sizes.
5. Crimea: Crimean forces stormed Ukrainian navy headquarters in a Black Sea port today, a day after Russia signed a treaty to annex the region. U.S. Vice President Joe Biden is in Lithuania today to help assuage the fears of other countries bordering Russia.