-By Raf Sanchez

April 18, 2013- The FBI has alleged 45-year-old Paul Kevin Curtis, an Elvis Presley impersonator, was the sender.

FBI Special Agent in Charge Daniel McMullen said Mr Curtis was arrested at his apartment in Corinth, near the Tennessee state line about east of Memphis.

Ricky Curtis, who said he was Kevin Curtis' cousin, said the family was shocked by the news of the arrest. He described his cousin as a "super entertainer" who impersonated Elvis and numerous other singers.

"We're all in shock. I don't think anybody had a clue that this kind of stuff was weighing on his mind," Ricky Curtis said.

Authorities are still waiting for definitive tests on the letters sent to President Barack Obama and Sen. Roger Wicker of Mississippi.

An FBI intelligence bulletin obtained by The Associated Press said those two letters were postmarked Memphis, Tennessee.

-By Camille Dodero

April 18, 2013- Remember in high school, when your laziest teachers would invite in terribly ineffectual special guests to entertain the class, usually on Fridays right before vacation week? And while you'd be happy these guests freed you from any actual responsibility, you always wondered why "they" didn't just give you a Half Day, because no one wanted to be here anyway, except maybe the poor saps who'd been cajoled into thinking their expertise meant something to a room of indifferent clock-watchers?

-By Katie J.M. Baker

April 18, 2013- A Palestinian woman said she was assaulted while taking a late morning stroll with her baby daughter and friend by a man who accused her of being a terrorist. We thought someone would've been publicly attacked and berated for secretly planning the Boston Marathon bombings within hours of the explosions, but nope — racists managed to contain themselves for two days. Bravo.

Memo to the New York Post and other media outlets that told us to look out for "dark-skinned" suspects: baseless and racist claims prompt action, not just pageviews.

-By Adam Clark Estes

April 17, 2013- Federal agents took a man from Corinth, Mississippi into custody on Wednesday evening under suspicion of sending letters covered in ricin to the president and Mississippi Sen. Roger Wicker. Citing an FBI bulletin, NBC News reports that the suspect's name is Paul Kevin Curtis, and anyone who's been following the story will immediately realize that the suspect's initials match those in the sign-off on both letters: "I am KC and I approve this message." Both letters also contain the phrase "to see a wrong and not expose it, is to become a silent partner to its continuance," and both were sent from Memphis, Tennessee on April 8, 2013. (Update: There's now much more information known about Curtis, an Elvis impersonator and organ-harvesting conspiracist.)

April 17, 2013- A Mississippi man charged with mailing letters with suspected ricin to national leaders believed he had uncovered a conspiracy to sell human body parts on the black market, and on Thursday his attorney said he was surprised by his arrest and maintains he is innocent.

Paul Kevin Curtis, 45, wore shackles and a Johnny Cash T-shirt Thursday in a federal courtroom. His handcuffs were taken off for the brief hearing, and he said little. He faces two charges on accusations of threatening President Barack Obama and others. If convicted, he could face up to 15 years in prison.

He did not enter a plea on the two charges. The judge said a preliminary hearing and a detention hearing are scheduled for 3 p.m. Friday.

Attorney Christi R. McCoy said Curtis "maintains 100 percent that he did not do this."

"I know Kevin, I know his family," she said. "This is a huge shock."

-By Ashley Fantz

April 17, 2013- Almost a year ago, 8-year-old Martin Richard wrote four simple words on a sign at school.

"No more hurting people," it said.

For the camera, he held up the bright blue sign decorated with hearts framing the word "Peace."

It's a photograph that many find difficult to look at Tuesday as they struggle to comprehend the violence that took Martin's life. On Monday, the boy and his family were watching the Boston Marathon near the finish line when two bombs exploded just off Copley Square in the heart of the city.

The grade-schooler was killed, authorities said.

Martin's mother, Denise, and his sister were grievously injured, The Boston Globe reported.