Fernando Alban was arrested last week for alleged involvement in the explosion of two drones during a military parade that was led by President Nicolas Maduro which injured seven soldiers in August.
The country's chief prosecutor, Tarek William Saab, says the two high-ranking military officers are suspected of participating in an attempt to assassinate President Nicolas Maduro in a drone blast earlier this month.
Colombian migration authorities confirmed that Luisa Ortega Diaz and her husband German Ferrer landed in Bogota aboard a private plane from Aruba.
David Vallenilla, 22, was killed after being shot at close range by a military police sergeant, apparently with rubber bullets.
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