A family is offering $10,000 for information on their 25-year-old missing son who disappeared last week in Boulder County.

Nathaniel Tallman was last seen January 21st, driving his 2014 Mitsubishi Lancer Ralliat near his home in Lafayette.

"I can think the worst and I can think the best," said Kevin Tallman, Nathaniel's father, who would like to think 'Nate' just took off on an impromptu vacation... but he said that wasn't Nate.

"He wouldn't make us feel this way for 8 days," said Tallman, "if, in fact, he could get to a phone."

Their fear is that he got into an accident in his new car somewhere and hasn't been found. Lafayette police said they are investigating, and they are starting a tip line for anyone with information: 303-604-8014.

Read more at: 7 News Denver