Earlier this month, China's Supreme Court reversed a lower court's ruling and proclaimed Nie Shubin not guilty of raping and murdering a woman in a cornfield in northern Hebei Province more than two decades ago, in 1994.
Nie's mother, Zhang Huanzhi, has long campaigned on her son's behalf. She says she hurried to inform him of the verdict.
"I sent him a photocopy of the verdict," she says. "That is, I sent it to him by burning it. I feel he must be happy about it."
She burned the document before her son's grave, believing it would reach him in the afterlife.