Penelope Garcia:  I am all over the DOJ names including support staff . I have Kevin pulling files and photos . System is down , so it 's hard to track entire career paths , but there were two agents in New York in _ 2001 _ . Scratch that , Lehman died in October , that leaves Curtis .
Alex Blake: Wait a second . John Curtis ?
Penelope Garcia: You know him ?
Alex Blake: I haven't seen him in a long time . He was a nice guy . We were first office agents together , but I thought he left the Bureau after Amerithrax case .
Aaron Hotchner: Could it be him ? Does he fit the profile ?
Alex Blake: He was quiet and a loner , but brilliant . He specialized in a lot of fields , but his passion was biochemistry .