Jarrod Ramos, an Annapolis gunman, intentionally damaged his fingertips to make fingerprint identification difficult after shooting the Capital Gazette newspaper today.

Annapolis shooting suspect accused of killing five people in a Maryland newspaper had damaged the tips of his fingers in an apparent attempt to thwart police efforts to prevent him. identify by fingerprints. officials told CBS News.

A law enforcement official told CBS News that the suspect was identified as Jarrod Ramos, 38 of Laurel, Maryland. Police say Ramos opened fire Thursday afternoon in the offices of the Capital Gazette in Annaposlis, killing five people and wounding others

"This was a targeted attack on the Gazette of the capital city".

The suspect was arrested at the scene, but he did not cooperate with the investigators, police said. CBS News' Jeff Pegues reports that Ramos was caught hiding under a desk

Ramos had no identification on him at the time he was detained. He is described as having long hair. According to a police source, the authorities used other means to identify him, including facial recognition technology to search the passport and driver's license databases.

A police source reported carrying smoke or flashes. Police said they used a "shoulder rifle" during the shooting, which, according to one source, was a shotgun.

CBS News also learned that the shooter opened fire in the newsroom. Eyewitnesses told the authorities that the shooting had sent reporters and other employees under offices and other hiding places .

Pegues reports that investigators will try to determine the motive of the suspect. They will try to recover one of Ramos' electronic devices and see if he has social media accounts. Police said Thursday night that Ramos had actually made threats through social media, but investigators are addressing the issue.

In addition, investigators will try to determine if the suspect had ever visited the newspaper. A source familiar with investigations like Thursday says that the speed of the shootings suggests that there was some familiarity. They will examine how he was able to enter the building

Investigators have secured the suspect's house and are preparing search warrants