1.   A youth has been charged with the murder of a security guard.

2.   Two youths have been charged with aggrevated vehicle taking.

3.   At a news conference Monday afternoon, Philip T. McLaughlin, the New Hampshire attorney general, said his office would charge both youths as adults.

4.   Both youths have been charged with second-degree murder, the police said.

5.   Both youths are charged with felony theft of an airplane.

6.   Also, prosecutors would gain the authority that judges have in deciding whether to charge youths as adults.

7.   Both youths are charged with burglary and weapons offenses.

8.   Four youths were charged with mob action, a felony.

9.   He said the two youths would be charged with robbery, criminal possession of a weapon with intent to use the weapon and criminal possession of stolen property.

10.   It would give federal prosecutors more flexibility to charge youths as adults in crimes such as drug conspiracies, firearms offenses and violent crimes.