A composite is a euphemism for a lie. It's disorderly. It's dishonest and it's not journalism.
Commenting on New Yorker staff writer Alastair Reid's use of composite characters. p.65, The interplay of influence: mass media and their publics in news, advertising, politics, Wadsworth series in mass communication, Kathleen Hall Jamieson, Karlyn Kohrs Campbell, Edition 2, Wadsworth, 1988.