A man who lives next door to the California family of a man suspected of shooting dozens of people at a Colorado movie theater says he was a loner.

Tom Mai is a retired electrical engineer who is neighbors with the family of 24-year-old James Holmes on a quiet, well-to-do San Diego street of two story homes with red tile roofs.

Mai says he said hello to Holmes once in a while but seemed to be shy.

Mai says the family lived there about 10 years. The mother is a nurse and the father is a manager at a software company. The suspect has a younger sister.

Mai says the mother told him Holmes couldn't find a job after earning a master's degree from a public university in California.