Due to his aggressive behavior, Devin was the worst behaved child out of his brothers & his aggressive behavior controlled the house. He was even physical with his own mother; during Observation, Jo witnessed Devin headbutting Lisa.
According to his older brother, Darren, Devin treated their mother like she's a punching bag. During the Parent Meeting, Lisa told Jo that he started to misbehave as a baby.
He was diagnosed with Bipolar and ADHD.
Devin was 6 years old at the time and as of 2018, he is now 18 years old