Radee Labeeb Prince had a record of workplace violence long before he allegedy opened fire at an office park in Maryland Wednesday morning, killing three co-workers at Advanced Granite Solutions and critically injuring two. Police say the 37-year-old, who was taken into custody Wednesday night, has a long criminal record in both Maryland and Delaware, where he allegedly shot and injured a man after the office park shooting, the Baltimore Sun reports. Wilmington Police Chief Robert Tracy says Prince's record in Delaware includes 42 arrests and 15 felony convictions. In 2003, he was sentenced to 25 years for 15 counts of burglary, though all but two years of the sentence were suspended.
A former co-worker at another granite countertop store in Maryland tells the Sun that Prince was fired for punching another colleague in February this year, and that he returned to the business repeatedly to threaten others. "He came back to our business justifying what he did was right because the other guy was saying some things that he did not like," says the co-worker, who filed for a restraining order. Police say Prince, the target of a huge manhunt Wednesday, was arrested after police saw him walking in the town of Glasgow, Del., the AP reports. They say that when he saw officers, he threw away a handgun and began to run. He made it about 75 feet before he was arrested, police say. (Read more workplace shooting stories.)