A US citizen identified as Joseph Galaska, 58, is in custody after authorities at Pearson Airport found a device that looked like a bomb but wasn’t. Galaska has been charged with mischief in connection with the “mock improvised explosive device” found during the inspection of a traveller’s suitcase Thursday. The incident delayed United Airlines flight 547 to Chicago for five hours and ultimately led to the aircraft returning empty to its origin. Passengers were re-booked aboard other flights.