The crime was perpetrated by two men on a motorcycle, who opened fire on the truck in which the activist was riding, according to the Center for Thought on Armed Conflict, Peace and Post-Conflict.
Sánchez Villa was vice-president of the Community Action Board of the village of La Raya, in the region of Catatumbo.
It is not known if there was a previous threat against his life. A judicial commission was sent to investigate the murder.
COLOMBIA: Asesinan a 5 líderes sociales en menos de 24 horas y @Almagro_OEA2015 qué? El departamento del Cauca, se presenta como el más acechado del país en estos últimos días, con más de 16 líderes sociales y defensores de derechos humanos asesinados en lo que va de año 2020. pic.twitter.com/ETDKR2txg5
"Colombia: Five Social Leaders Assassinated in Less Than 24 Hours. Cauca's department is presented as the most besieged in the country in recent days, with more than 16 social leaders and human rights defenders murdered so far in 2020."
Human rights defender Gustavo Enrique Mestre condemned the murder of the social leader in a message posted on Twitter.
"On May 4, 2020, at kilometer 18 of the road from the municipal seat of Tibú to La Gabarra, Carlos Andrés Sánchez, vice president of the Community Action Board of the Vereda Caño Raya, was murdered by several shots," he wrote.
According to the most recent count prepared by the Institute for Peace and Development Studies, 84 social activists were murdered in Colombia between January and April 30.