marc and his parents, jack and tana. michelle and her long divorced parents, her mom kathy and her dad carl. michelle also brought along a baby from an earlier relationship. >> and he never treated her like she was not his. never. >> reporter: together they had two boys. >> he loved his kids. i mean, just anything they ever dreamed of, he would do his damndest to get it. anything. >> reporter: the little family moved into a trailer marc's parents bought them. and marc studied hard to become a real estate appraiser, like his mom, and went into business with his parents. which, said michelle, is about when things began to go wrong. >> marc didn't like to be pushed around by his dad. he was an independent person. >> reporter: the growing tension spilled over at the kitchen table. marc demanded a bigger share of the money. they argued. and then michelle chimed in. oh, boy. >> oh my goodness, when she opened her mouth, dad just flipped off the handle. and, of course, marc just, i don't know, stepped in as -- as a husband, lik