EXCLUSIVE: Boy, 10, is distraught after his mom vanished with her daughter, 2, and 'abusive' ex during camping trip: Missing woman's dad fears her life...

Brayden Sidebotham-Farmer, 10, (left) of Springville, is just 'one step from breaking down' after his mother Jill Sidebotham, 28, and his sister Lydia, two, disappeared (ri…