CULIACAN, Mexico (AP) -- Prosecutors in the Mexican state of Sinaloa say they have detained three suspects in connection with the presumed killing of two Australian tourists who disappeared on Nov. 20.
Sinaloa state prosecutor Marco Antonio Higuera said the three were low-level drug dealers who were robbing motorists on a stretch of highway leading south through Navolato, Sinaloa.
Higuera said Friday the three were operating as part of a highway robbery gang along with two other suspects who remain at large.
They allegedly killed Adam Coleman and Dean Lucas because Coleman resisted the robbery.
The thieves allegedly shot the two Australians to death, then doused their vehicle with gasoline and set it afire.
Two charred bodies found inside the van have not yet been positively identified. Tests are continuing.