>Has anyone proven that they have been civilians and that they have lied about the targets?

(not relevant question)

The United States is not legally allowed to use "shoot-to-kill" force or launch deadly military strikes on drug-trafficking boats in international waters. '

The Baseline Rule: Lethal force is restricted to self-defense or the defense of others if the suspects present an immediate threat of death or serious physical harm.

Disabling Fire: To stop a fleeing boat, law enforcement is permitted to use "disabling fire" (such as firing at the engines or using boat-trapping nets), but they must explicitly minimize the risk of injury or death to the crew. Carrying illegal narcotics alone does not carry a death penalty, nor does it justify lethal force.

The US has killed over 160 people illegally using airstrikes. so far.