Suspect must undergo psychiatric evaluation before court appearance . Suspect is accused of killing his wife and her friend in their home on Saturday. Man had bag stuffed with wires and batteries , appeared intoxicated , official says . Flights resume at busy LaGuardia Airport after evacuation ends .
Suspect must undergo psychiatric evaluation before court appearance . Scott McGann , 32 , of New York , faces 3 charges , including making terrorist threats . Man had bag stuffed with wires and batteries , appeared intoxicated , official says . Flights resume at busy LaGuardia Airport after evacuation ends .