 He organized the first Katipunan group there after he was inducted into the secret society by Ladislao Diwa in 1896.When the revolution broke out in 1898, he liberated Tarlac and established town councils in areas he liberated.Macabulos refused to honor the Pact of Biak-na-Bato, which called for a truce with the Spanish colonial government, and continued operations in Central Luzon.