On 20 April 2004, Gabriel Remolina, the President of the Bucaramanga Branch of SINALTRAINAL (Sindicato Nacional de Trabajadores de la Industria de Alimentos - the National Union of Food Industry Workers) and his partner, Fanny Robles, were killed by unidentified gunmen.

The gunmen are reported to have forced their way into Gabriel Remolina's home in Bucaramanga, department of Santander, and opened fire indiscriminately. Three of his children were injured in the attack and one of them, Robinson Remolina, died shortly afterwards in hospital.