Really said to hear such a thing happen the guy. If he had known that such a thing would have happened, he probably wouldn't have at that area talk more of going to help the woman. Now those thieves still got away with the woman.

The tracking system of our security agencies are bad. Normally, when such a criminal receives money from the kidnapped victim, he would be tracked down through his calls they made to the relative culprit or their receiving bank account. But unfortunately, they will go free and next time, they will be motivated to do more.
Our security agencies really need to improve on these areas.

How about we have satellites over countries and these satellites detect every time a gun is shot, and when it detects this it simply puts the shooter on a radar and that way wherever the shooter goes we would be able to find them by just looking at the radar?

Getting satellites to detect a gunshot and track the culprit is a good idea, however,
it will require huge amount of investment.