Ben Williams’ aggressive brain tumor was treated with conventional therapies – and with a mix of common drugs, including those for acne, insomnia and high blood pressure, as revealed in a new documentary. Could this approach work for others? One day, some two decades ago, Ben Williams set out from his home in San Diego, California, to cross the border into Mexico in search of acne tablets. The 50-year-old psychology professor didn’t actually suffer from acne. What he had was the deadliest type of brain tumor, a glioblastoma multiforme that was the size of a large orange. A leading neuro-oncologist from Texas had suggested that a skin treatment, called Accutane, might help him.