The man, identified as 44 year-old Christopher Bane, was arrested late Tuesday and charged with “making terroristic threats.”
According to an affidavit, Bane planned to go to the Islamic Center of San Antonio, where he was "going to shoot as many people as possible, and then kill himself."
A witness, who helped the police with the case, said Bane told him he had a .45 caliber handgun and ammunition.
It was “very bad news for us,” said Solomon Hamideh, president of the Islamic Academy of San Antonio.
In August, a mosque in the Midwestern US state of Missouri was completely destroyed in a suspected arson attack. The suspect was identified as Wade Michael Page, a former US Army trooper with reported links to the white supremacist movement.