Trevor is the youngest male of the Kelly clan.  Fortunately (or maybe unfortunately), Trevor holds the security of our nation in his hands.  He works with firewalls, computer security, and other technological items that I often misunderstand.  Fortunately, he is engaged to Tina Vu (the individual in the middle of the picture) who is apparently keeping his antics well grounded.  Again, another brother who can provide many entertaining stories regarding our childhood:  a hole in his head from a game of clue, broken windows galore, and several other forms of abuse.