BRASILIA, Aug 1 (Reuters) - Brazilian police on Friday were looking for an accomplice in the murder of a British teenager who was beheaded and mutilated by her boyfriend last weekend, a spokesman said.

Police said a friend helped Mohammed D'Ali Carvalho Santos, a 20-year-old Brazilian, dump the dismembered body of Cara Marie Burke, aged 17, in the central city of Goiania on Sunday.

"He says he killed her alone but had help transporting the body parts," said Norton Luiz Fereira, a spokesman for the local police.

Santos told police he killed Burke after she threatened to reveal he was a drug dealer. Her torso, which family members in Britain identified from photographs, was found in a suitcase in Goiania, some 120 miles (200 km) southwest of the capital Brasilia.

Police said on Friday they found evidence in Santos's apartment that link him to the murder.

"There is no doubt he did it," homicide detective Carlos Raimundo Lucas Batista told Reuters.

"He has been charged, will be formally indicted and may face 30 years," Batista said, citing the maximum prison sentence allowed under Brazilian law.

Officers searched a ravine on the outskirts of Goiania on Friday, where Santos told them he threw the rest of Burke's body parts.

Burke shared an apartment for three months with Santos, whom she met in Britain. But Santos said they argued and grew distant because she had another boyfriend, according to Fereira. (Reporting by Raymond Colitt, Editing by Todd Benson and Eric Walsh)

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