After days of combing through huge amounts of photographic and video evidence of Monday's bombings at the Boston Marathon, authorities have two clear video images of suspects that they plan to release to the public Thursday afternoon.
Federal authorities have arrested Paul Kevin Curtis, 45, for allegedly sending letters containing the deadly poison ricin to President Obama and Senator Roger Wicker (R.-Miss.) earlier this week.
2:45 p.m. (EST): The Boston Police Department has announced that "there has not been an arrest in the Marathon attack." Investigations are ongoing.
2:35 p.m.: CNN is retracting their previous report that an arrest has been made in the Boston Marathon bombings. Other sources are reporting that officials are close to identifying a suspect after reviewing area surveillance video, but no arrests have been made.
1:10 p.m. (EST): A third letter, this one sent to Senator Joe Manchin (D.-W.V.), has been found to contain ricin.
12:45 p.m. (EST): FBI spokesman Paul Bresson has confirmed that the substance found in the letter to the president was ricin.
The Secret Service says that a letter containing a suspicious substance and addressed to President Obama was received on Tuesday at a White House mail facility. This comes just after a letter sent to Senator Roger Wicker (R.-Miss.) was found to contain the poison ricin.
Three people were killed and more than 100 injured on Monday afternoon when two explosions went off near the finish line of the Boston Marathon. Rescue organizations have gathered to help and at the the tragic scene, but how can you help?
The Huffington Post has put together a helpful list of ways:
9 p.m. (EST): The final press conference of the day with Massachusetts Governor Deval Patrick, Boston Police Commissioner Ed Davis and various other officials just concluded. The FBI is now leading investigations of the events. Davis confirmed that three people were killed in today's blasts.
CNN is reporting that one of the victims killed was an 8-year-old boy. The Wall Street Journal had reported that as many as five other unexploded devices were found around Boston, but investigators now doubt that they were actually bombs.
Even if you're not heading to the movies on Monday or Tuesday, you'll be seeing "42" if you're a Major League Baseball fan. All players and on-field personnel will once again don the No. 42 in honor of Jackie Robinson Day
A very strong spring storm dumped ice and snow throughout the Midwest on Thursday, and tornadoes tore through much of the South. The storm is now heading for the East Coast.
