1 / 6Jobless waiter Alberto Sanchez Gomez reportedly made the gruesome confession to officers and said he shared parts of the body with his pet dog.2 / 6Gomez, 26, was arrested when detectives turned up at his family home in Madrid to inquire about missing OAP Maria Soledad Gomez.3 / 6Shocked cops found her body parts in at least six large Tupperware containers inside the flat near the Spanish capital’s famous Las Ventas bullring.4 / 6Her vital organs were missing and part of her intestines were found mixed with domestic waste inside the flat.5 / 6Macabre new details of the gruesome find emerged ahead of Sanchez’s court hearing. Her son is expected to be charged with killing her, although police have not yet said how they believe he ended her life.6 / 6The first photos of Sanchez emerged today as former friends told local media how he had become a problem for his family after becoming addicted to drugs. They said he used to spend time on a park bench opposite his home drinking with homeless people.It is not yet clear when his mum, 66, died but police said they suspected it happened a month ago. Police sources say they believe the detainee, one of three children whose cabinet-maker dad died when he was 15, cooked part of his mum’s body parts before eating them or feeding them to the pet dog. He was well-known to officers because of a series of prior arrests thought to relate to domestic violence against his mum. Neighbours said she often had bruises that they initially thought had been caused by the dog. Officers have found part of her remains in Tupperware storage containers.