Your daily round-up of five stories to know about today:
1. Boston Marathon bombings: Russian authorities reportedly raised concerns about one of the suspects "multiple" times in recent years, and the brothers may have been plotting an attack in New York City. However, it doesn't appear that the two have ties to foreign terrorist groups. The latest on Boston.
2. Sunil Tripathi found?: A body found in the water near Providence, R.I., may be 22-year-old Bryn Mawr native Sunil "Sunny" Tripathi, who has been missing since mid-March. Tripathi was also in the news last week when false reports on social media speculated he was involved in the Boston Marathon bombings.
3. Search for Ricin-letter suspect: Charges were dropped against the Mississippi Elvis impersonator accused of sending ricin-laced letters to President Obama and Sen. Roger Wicker. Investigators on Tuesday were searching the home of another Mississippi man, but no charges have been filed.