Grim Details Emerge in FSU Professor's Shooting Death

MIAMI — -- A criminal law professor at Florida State University gunned down at his home was shot in the side of the head at relatively close range, ABC News has exclusively learned.

Professor Dan Markel, 41, was fatally shot Saturday in the Betton Hills section of Tallassee, Florida, a neighborhood marked by Spanish moss and ranch-style homes.

Investigators believe Markel knew his killer and may have literally opened his door to his own death.

“He was the intended target in this situation,” Tallahassee Police Department Officer David Northway said.

FSU Professor's Fatal Shooting Rattles Campus

Police have released pixelated pictures of a silver Toyota Prius which they say was seen in the area on the day of the crime. A police tip line has netted 50 calls so far.

One potentially big clue is that there was no sign of forced entry into the house.

“There’s not enough information to suggest that this is a contract murder. It certainly could be,” said ABC News consultant Brad Garrett, a former FBI agent. “The most likely theory is that it it’s somebody that he knows.”

With no suspects named, police are being careful not to reveal certain evidence.

“We must make sure that we are keeping the integrity of this case so we can bring it to prosecution,” Northway said.

Markel’s death has rattled the college town. The Harvard grad had been published in the New York Times and served as a legal scholar, with a focus on criminal law.

Markel left behind two boys, as well as his ex-wife, fellow FSU professor Wendi Jill Adelson. Adelson’s attorney says her client is devastated and scared because she doesn’t know who did this or why. Documents obtained by ABC News show the two finalized their divorce a year ago, but had still been in a battle over access to their sons.

Tallahassee police say they’ve questioned Adelson, but have not named her or anyone else a suspect.

“We are speaking to everybody who has an affiliation with Mr. Markel,” Northway said.

ABC News Chief Legal Affairs Anchor Dan Abrams said police have made a point to say that Markel was targeted in order to assure people that they don’t need to worry about the shooter striking again.

Cases of this nature usually get solved, Abrams said.

“The tougher cases are when they don’t really have any idea what happened. But here, I think, they’ll have clues that will lead them back to the person who did this,” he said.