When an 11-year-old autistic boy went missing on Monday, a police dog named Rocky led first responders right to him. Police were called to a Hanson neighborhood at 8:30 p.m. Rocky, a Massachusetts State Police K9, was deployed to search neighborhood yards. “While checking a backyard, Rocky showed a change in behavior and pulled over to a large dirt hill at the back of the yard adjacent to railroad tracks,” said police. When officers reached the top of the hill, Rocky began barking at the thick brush below. That’s when paramedics swooped in and located the boy inside the brush, said police. The boy was evaluated and reunited with his family.