I don't think I would recognize any of the suspects if I bumped into them in the street. Unless they happen to get arrested somewhere that has their fingerprints or are detained for 6 weeks while their DNA is checked, I don't see how Interpol will be of much help. They are probably already settled into their daily commute into the office along with millions of other European workers and will never be identified.
In three days, Greek coastguard rescues 2,500 migrants (Reuters)
from the article: Interpol seeks arrest of 16 more suspects in Dubai hit