A 22-year-old man was ordered held without bail Thursday after he was charged by Anne Arundel County police with first-degree murder and armed robbery in the July 1 fatal shooting of a Brooklyn Park resident. Police said they arrested Ricky Lamont Mason, of Curtis Bay, on 14 counts, and were continuing to hunt for a second man in the slaying of Adam Ray Bucklew, 21. Bucklew was shot in front of his home in the 400 block of Audrey Avenue, Brooklyn Park. Police said the apparent motive in the shooting was robbery. Mason was convicted in Baltimore of a 2006 burglary and property destruction, and had been jailed last year for violating probation following a drug conviction in the city, according to court records.