The Science Facility? It was within our grasp all along! Strange that such an important object would have so little protection. No matter. Enter the facility and retrieve the sample to receive your reward! It should be between the Guard Outpost and the Battle Arena.
Hmmm...there is something amiss about this sample. It is indeed Tech Mage DNA, but not Caden's. This will be more challenging than I suspected.
I peered deeper into the Data Disk and found mention of one called "Oz." He is linked to Caden in some way. Perhaps he has insight into the whereabouts of the DNA. Seek him out in Central Station!