The first WTC bombing was in 1993
The second attacks on the WTC were on 9/11/2001.
Iraqis once employed by Khalil broke into his house. One of the Iraqis involved in the breakin was a roomate of the main Iraqi suspect in the OKC bombing, Al Hussain Hussaini. Hussaini was also employed by Khalil at the time of the OKC bombing. Khalil was tied to Hamas and the Iraqis(employed at least two of them) but I guess they turned on him (unless it was staged?).