Mark Memmott

Among the key things to know about what's in the hundreds of pages of evidence and other materials related to the Feb. 26 shooting death of Florida teenager Trayvon Martin, which were released Thursday:

Facebook's much-publicized first sale of stock to the public started with a bang late this morning as the price per share jumped. But though the volume of shares sold was a record for an initial public offering, the stock's price gave up its gains as the day continued.

By the end of trading in the U.S., Facebook had settled right at the $38 initial offering price that had been set before shares went on sale.

President Obama has said "I don't bluff," when it comes to opposing any effort by Iran to develop nuclear weapons (which that nation says it is not trying to do). And, he told The Atlantic's Jeffrey Goldberg in March, "all options are on the table."

A 43-year-old woman in San Clemente, Calif., suffered second- and third-degree burns on her right leg and right arm Saturday after rocks in a pocket set her shorts on fire, The Orange County Register says.

Orange County Fire Authority officials tell the newspaper that the woman collected the rocks on a nearby beach, returned home and "was standing in her kitchen ... when the pocket of her cargo shorts caught fire."

In a classic example of "on the one hand, on the other hand" economic analysis, the word that Japan's economy grew at a strong 4.1 percent annual rate in the first quarter is being followed by cautionary talk of slower growth for the world's third-largest economy in coming quarters.

The campaign for GOP presidential contender Mitt Romney and the Republican Party together raised $40.1 million in April, just shy of the $43.6 million that President Obama and the Democratic Party took in.

This is the first monthly report since Romney effectively wrapped up the Republican presidential nomination. And because money is one way to keep score during a presidential campaign, the news is getting a great deal of attention from the political media this morning.

There were 370,000 first-time claims for unemployment insurance filed last week, the same number as during the week before, according to the Employment and Training Administration.

So, after a spike to a range around 390,000 per week in April, claims have slowed again to a pace that's roughly the lowest since the spring of 2008.

Legal activist Chen Guangcheng has reportedly finished submitting applications to Chinese authorities and has been told that he and his immediate family could be issued passports within the next two weeks.

That would then allow him to come to the United States.

"For the first time, racial and ethnic minorities make up more than half the children born in the U.S," The Associated Press writes.

As USA Today adds, that news from the Census Bureau is "a sign of how swiftly the USA is becoming a nation of younger minorities and older whites."

The word on Monday that JPMorgan Chase's losses from risky trades that went wrong could climb from $2 billion to perhaps as high as $4 billion in coming quarters is being bolstered this morning.

There's this report from The New York Times' Deal Book blog:

Here's yet another reminder about why it's important to have somebody write down the rules and keep accurate records if you're pooling money at the office to buy lottery tickets.

After all, for every heart-warming story about "three amigos" who seem to have gotten along swimmingly and deserved the money they won, there are tales such as this:

The campaign corruption trial of former Democratic presidential contender John Edwards will not reach a dramatic climax with testimony from the former senator or the mistress he's accused of trying to hide with 2008 campaign funds.

According to The Associated Press, Edwards' attorneys said in court today that they will not be calling Edwards or Rielle Hunter to the stand and that they expect to rest their case later today.

"I'm for Mitt Romney."

With four words, said to an ABC News reporter as an elevator's doors closed, former President George W. Bush on Tuesday confirmed what was pretty obvious — he is supporting his fellow Republican's bid for the White House.

But as The Associated Press reports:

"Bosnian Serb Gen. Ratko Mladic taunted Srebrenica survivors on Wednesday at the start of his trial for genocide, running his hand across his throat in a gesture of defiance to relatives of the worst massacre in Europe since World War II," Reuters writes from The Hague.