Cleaner Sally Dust
at her home

Dust:"I was cleaning in the laboratory, as always, between 8 and 9 o'clock. I saw there a shadowy looking man with a mustache who was watching the equipment of the laboratory, but I can't really say what he was doing since I don't know anything about computing." 

Other suspects:
 
Engineer Form
Businessman Dineros		 Crime Scene
Who Did It?
Quit

Police Data:

Sally Dust
Age 34
Cleaner in Hypermedia laboratory for six years now
Married
Four Children
No record