Police say story of boy in runaway was a hoax . Family wanted publicity for reality TV show , sheriff said . Official charges in the case could be filed next week . Lawyer says Heene family deserves plea of innocence .
Authorities say story of boy in runaway balloon a hoax . Family wanted publicity for reality TV jobs , sheriff says . Official charges in the case could be filed next week . Lawyer says Heene family deserves presumption of innocence .