Edwin Valero tried to kill his wife Jennifer Carolina Viera De Valero before.
Last month, Edwin Valero was brought up on charges of harassing his wife and threatening medical personnel who treated her at a hospital in the western city of Merida.
Police arrested Edwin Valero following an argument with a doctor and nurse at the hospital, where his wife was being treated for a series of injuries, including a punctured lung and broken ribs.
Unfortunately there is not a photo of Jennifer Viera. On the web there are only pictures of Edwin.
Edwin Valero faced accusations of mistreating his wife and was treated for an alcohol problem.
When guards went up to the room in the hotel in the northern town of Valencia they found the body of the boxer's 20-year-old wife, Jennifer Carolina Viera de Valero, who had reportedly been stabbed several times.
Valero, 28, who has been detained for questioning by police following his initial confession, has made a first statement and will go before a prosecutor soon.