Unfortunately, the article isn't well written (in my opinion) and it seems details of the other tattoos are not provided, although I may have missed it.
> The tattoo on Suárez’s neck is of a colibrí, a hummingbird. His wife said it is meant to symbolize “harmony and good energy.” She said his other tattoos, like a palm tree on his hand—an homage to Suárez’s late mother’s use of a Venezuelan expression about God being greater than a coconut tree—were similarly innocuous. Nevertheless, they may be why Suárez has been effectively disappeared by the US government into a Salvadoran mega-prison.
is in the second sentence of the Mother Jones article. He is not a Salvadoran citizen, he's been sent to a third country by the US.