5 Things to Know This Morning

— -- Your look at the five biggest and most buzz-worthy stories of the morning.

1. Investigators Solve Mystery of Porcelain Dolls

Investigators in California say they've solved a strange case involving porcelain dolls being left on the doorsteps of girls they hold an eerie resemblance to.

At least eight families received the dolls in the Talega community of San Clemente, with all of the girls targeted around 10 years old.

2. France Sends Troops to Guard Air Algerie Wreckage

French troops are headed to a remote area in Mali to secure the site of Thursday's Air Algerie jet crash, the third major international aviation disaster in a week.

The jetliner – owned by Spanish company Swiftair and leased by Algeria's flagship carrier – had 110 passengers and six crew members on board when it took off from Ouagadougou, Burkina Faso, en route to Algiers, the airline said.

3. Cause Sought for Gunfight Between Patient, Doctor

Authorities are attempting to determine why a patient fatally shot a caseworker at a suburban Philadelphia hospital complex and whether a psychiatrist who pulled out his own gun and wounded the patient had concerns about him.

The psychiatrist, Dr. Lee Silverman, was grazed in the temple during the gunfight in his office Thursday afternoon with patient Richard Plotts, said Delaware District Attorney Jack Whelan.

"We do believe that there were some issues between the doctor and the patient, but whether or not he actually feared him is unclear," Whelan said.

4. Marine's Wife Miscarried Just Months Before She Disappeared

The wife of a Marine who vanished nearly one month ago had suffered a miscarriage a few months before her disappearance, a close friend said. She was pregnant again at the time she was reported missing, according to police.

Police said Erin Corwin was last seen on June 28 before telling her husband she was going on a hike in Joshua Tree National Park. She did not return home that evening and her husband, Jonathan, called police the next day.

Authorities are investigating the possibility that Corwin was having an affair with her married neighbor and was pregnant with his child, according to a police search warrant.

5. Watch the First, Very Sexy 'Fifty Shades of Grey' Trailer

It's here: the trailer for the highly anticipated movie adaptation of "Fifty Shades of Grey," starring Dakota Johnson and Jamie Dornan.

The video opens up with our leading lady heading to see Christian Grey for a simple interview for the newspaper.

From there, things get spicy.