A man suspected of killing three people at an office in Maryland has been arrested by police.

Two people were critically wounded after being shot in the head at Emmorton Business Park in Edgewood, about 25 miles northeast of Baltimore.

Harford County sheriff Jeffrey Gahler said the gunman and victims were all linked to a home improvement company Advanced Granite Solutions, adding that it was "one of the most heinous acts we've ever seen in our county".

The suspect was later linked to a shooting at a used car dealership around 55 miles away in Wilmington, Delaware.

Image: Shooting suspect Radee Labeeb Prince. Pic: Maryland State Police

Police said at least one victim at the dealership was targeted and described the shooting as "not a random act".


Suspect Radee Labeeb Prince, 37, has 42 previous arrests in Delaware and was fired from his job earlier this year after allegedly punching a colleague and threatening other workers.

Advanced Granite Solutions owner Barak Caba said Mr Prince had worked there for four months as a machine operator.

Larry Hunt, the manager of a firm on the park, said he and other employees were outside when they heard loud arguing.

He said they did not hear the sound of gunshots, but emergency vehicles entered the park and he and his colleagues were ordered to lock themselves inside their store.

Radee Labeeb Prince may be seen in a 2008 Black GMC Acadia SUV

with Del Registration PC064273. Use extreme caution if you see him. pic.twitter.com/eVYQ9tSS7D — MD State Police (@MDSP) October 18, 2017

"We were very nervous," Hunt said.

Officers visited a home where Mr Prince was last known to be living, but he was not there.

The FBI, which is assisting local investigators, said it is treating the shooting as a case of workplace violence and not terrorism.

The set of Netflix's House of Cards, which is around a mile away from Emmorton Business Park, was placed on lockdown after the office shooting.