Ethan Poulin, 24, rocks in a swing during a weekly visit at his family's home in Manchester. His intellect is roughly that of a 5-year-old and he is prone to hitting, both himself and others, when frustrated.

Landreth guides Ethan through Lowe's Home Improvement store. A trip to Lowe's to see the lawnmowers is a Thursday tradition.

Ethan Poulin paces in the backyard at his family's home in Manchester. He lives in a small group home in Auburn, his third such home in five years.

Ethan Poulin paces in the kitchen during a weekly visit to his grandmother's home in Augusta.

Landreth talks to Poulin during a visit to her home in Manchester. Poulin lives in a small group home in Auburn, his third such home in five years.

The State House dome is visible over the trees while Landreth tries to calm Poulin during a weekly visit to his grandmother's house in Augusta. Landreth says Poulin's violent outbursts generally occur when he becomes fixated on an idea.

Landreth smoothes Ethan's hair during a weekly visit to his grandmother's house in Augusta along with stepfather Chris Landreth.

Chris and Sue Landreth restrain Ethan's arms after a brief, violent outburst inside Lowe's Home Improvement store.