What To Do With Gamboa
It is unfortunate that Ernesto Gamboa let himself be co-opted by thugs engaged in an immoral government activity but that is no excuse to provide him official asylum.
On the other hand the government has no legitimate authority to make him go anywhere. If he can find private employment, can sustain himself, then he should not be interfered with.
Of course, all the people Gamboa lied to over the years may have some interest in claiming compensation for his involvement in their kidnapping and imprisonment.