Luis Alberto González López is a leader of the Las Parillas sector who dedicated himself to the defence of the environment, and the San Silvestre swamp. In the past, he accused the water company Aguas de Barranca of dumping tons of mud into the San Silvestre marsh, a biodiverse area where West Indian manatees used to find the perfect place to mate. On 8 February, 2021, a pamphlet signed by the ELN was circulated in which it was told that Luis Alberto had 72 hours to leave the area or else it would be declared a military objective. This is not the first time that this leader has been the target of intimidation; on previous occasions, he suffered attacks and threatening messages have been left at his home.

The Business & Human Rights Resource Centre contacted Aguas de Barranca for a comment; the company's response is provided below.