Walsh broke down how he thinks the "dirty Laundries," as he referred to the Laundrie family, helped their son cover up the incident connected to Petito’s death, including taking a suspicious family weekend trip upon his return home in a small attached camper. "He scrubbed that van, the parents helped him," he said. "I know they got rid of the evidence… [Brian Laundrie] was in that camper when the father and mother went out, I would guarantee it. And I’ve been doing this 33 years." "He was in that camper when they went on a little trip before [Petito] was...