officials claimed they were backed by influential members of the santa cruz merchant community of croatian background . the interior vice - minister , marcos pizarro , said that police have surveillance photographs of mr dwyer at various historical events attended by mr singh , including a peasant rally near santa cruz and a visit to naval forts on lake titicaca . mr farfan said that mr doyle was " following " mr morales and other staff as part of the preparations for the " assassination plots " . he added that other experts are analysing contents reportedly located in computers taken from the rooms in which the servicemen were assassinated .
Lake Titicaca has a naval installation.