So assuming there's a content type with machine name new for News, owner for Owner, horse for horse.
The news content type has a field named field_horses referencing horses
The owner content type has an instance of the same field field_horses and a
reference field to User, field_user
Create a view listing Content of type News
Add a relationship
Entity Reference: Referenced Entity
A bridge to the Content entity that is referenced via field_horses
require this relationship
add a second relationship
Entity Reference: Referencing entity
A bridge to the Content entity that is referencing Content via field_horses
have this second one use the first relationship "Content Entity referenced from field_horses"
require this relationship
add a third relationship
Entity Reference: Referenced Entity
A bridge to the User entity that is referenced via field_user
have this third relationship use the second relationship "Content referencing content from field_horses"
require this relationship
For filters you need two content type filters
One for Content type = News, using no relationships
another for Content Type = Owner using the "Content referencing content from field_horses" relationship
One user filter, Current User (yes), using the "User entity referenced from field_user

$view = new view();
$view->name = 'news';
$view->description = '';
$view->tag = 'default';
$view->base_table = 'node';
$view->human_name = 'News';
$view->core = 7;
$view->api_version = '3.0';
$view->disabled = FALSE; /* Edit this to true to make a default view disabled initially */
/* Display: Master */
$handler = $view->new_display('default', 'Master', 'default');
$handler->display->display_options['title'] = 'News';
$handler->display->display_options['use_more_always'] = FALSE;
$handler->display->display_options['access']['type'] = 'perm';
$handler->display->display_options['cache']['type'] = 'none';
$handler->display->display_options['query']['type'] = 'views_query';
$handler->display->display_options['exposed_form']['type'] = 'basic';
$handler->display->display_options['pager']['type'] = 'full';
$handler->display->display_options['pager']['options']['items_per_page'] = '10';
$handler->display->display_options['style_plugin'] = 'default';
$handler->display->display_options['row_plugin'] = 'fields';
/* Relationship: Entity Reference: Referenced Entity */
$handler->display->display_options['relationships']['field_horses_target_id']['id'] = 'field_horses_target_id';
$handler->display->display_options['relationships']['field_horses_target_id']['table'] = 'field_data_field_horses';
$handler->display->display_options['relationships']['field_horses_target_id']['field'] = 'field_horses_target_id';
$handler->display->display_options['relationships']['field_horses_target_id']['required'] = TRUE;
/* Relationship: Entity Reference: Referencing entity */
$handler->display->display_options['relationships']['reverse_field_horses_node']['id'] = 'reverse_field_horses_node';
$handler->display->display_options['relationships']['reverse_field_horses_node']['table'] = 'node';
$handler->display->display_options['relationships']['reverse_field_horses_node']['field'] = 'reverse_field_horses_node';
$handler->display->display_options['relationships']['reverse_field_horses_node']['relationship'] = 'field_horses_target_id';
$handler->display->display_options['relationships']['reverse_field_horses_node']['required'] = TRUE;
/* Relationship: Entity Reference: Referenced Entity */
$handler->display->display_options['relationships']['field_user_target_id']['id'] = 'field_user_target_id';
$handler->display->display_options['relationships']['field_user_target_id']['table'] = 'field_data_field_user';
$handler->display->display_options['relationships']['field_user_target_id']['field'] = 'field_user_target_id';
$handler->display->display_options['relationships']['field_user_target_id']['relationship'] = 'reverse_field_horses_node';
$handler->display->display_options['relationships']['field_user_target_id']['required'] = TRUE;
/* Field: Content: Title */
$handler->display->display_options['fields']['title']['id'] = 'title';
$handler->display->display_options['fields']['title']['table'] = 'node';
$handler->display->display_options['fields']['title']['field'] = 'title';
$handler->display->display_options['fields']['title']['label'] = '';
$handler->display->display_options['fields']['title']['alter']['word_boundary'] = FALSE;
$handler->display->display_options['fields']['title']['alter']['ellipsis'] = FALSE;
/* Sort criterion: Content: Post date */
$handler->display->display_options['sorts']['created']['id'] = 'created';
$handler->display->display_options['sorts']['created']['table'] = 'node';
$handler->display->display_options['sorts']['created']['field'] = 'created';
$handler->display->display_options['sorts']['created']['order'] = 'DESC';
/* Filter criterion: Content: Published */
$handler->display->display_options['filters']['status']['id'] = 'status';
$handler->display->display_options['filters']['status']['table'] = 'node';
$handler->display->display_options['filters']['status']['field'] = 'status';
$handler->display->display_options['filters']['status']['value'] = 1;
$handler->display->display_options['filters']['status']['group'] = 1;
$handler->display->display_options['filters']['status']['expose']['operator'] = FALSE;
/* Filter criterion: Content: Type */
$handler->display->display_options['filters']['type']['id'] = 'type';
$handler->display->display_options['filters']['type']['table'] = 'node';
$handler->display->display_options['filters']['type']['field'] = 'type';
$handler->display->display_options['filters']['type']['value'] = array(
'news' => 'news',
);
/* Filter criterion: Content: Type */
$handler->display->display_options['filters']['type_1']['id'] = 'type_1';
$handler->display->display_options['filters']['type_1']['table'] = 'node';
$handler->display->display_options['filters']['type_1']['field'] = 'type';
$handler->display->display_options['filters']['type_1']['relationship'] = 'reverse_field_horses_node';
$handler->display->display_options['filters']['type_1']['value'] = array(
'owner' => 'owner',
);
/* Filter criterion: User: Current */
$handler->display->display_options['filters']['uid_current']['id'] = 'uid_current';
$handler->display->display_options['filters']['uid_current']['table'] = 'users';
$handler->display->display_options['filters']['uid_current']['field'] = 'uid_current';
$handler->display->display_options['filters']['uid_current']['relationship'] = 'field_user_target_id';
$handler->display->display_options['filters']['uid_current']['value'] = '1';
/* Display: Page */
$handler = $view->new_display('page', 'Page', 'page');
$handler->display->display_options['path'] = 'horse-news';
I need to display the body and title of all 'news' that reference a 'horse'
I am assuming this is a View Block, where are you displaying this? When a Horse content type is viewed? OR when a Owner content type is viewed? – No Sssweat Jun 7 '17 at 7:19views_embed_view('view_name','block_1', $horse_nid);
– No Sssweat Jun 8 '17 at 6:10