Karen Denise Wells left her 14-month-old son with her parents before leaving to visit a girlfriend in New Jersey for a few days.

She left Tulsa on a Sunday night — April 10, 1994 — and stopped at a motel near Carlisle, Pa. about 7 p.m. Tuesday.

Wells, a resident of Haskell, never made it to New Jersey.

Now, more than 14 years since the 23-year-old disappeared, Middlesex Township Police Department detectives in Carlisle , Pa., are taking a new look at the cold case.

“There was a bunch of things in the car we’re going to test in different ways — ways we couldn’t in 1994,” Police Sgt. Bill Goodheart said.

Cigarette butts, paper cups and other items are going through DNA testing, he said Friday.

“Someone who has been arrested and put in the system may have drank from the cups or have DNA on the cigarette butts,” Goodheart said. “There were just no real clues at the time.”

The Wells case is gnawing on Goodheart’s boss — one of the few cases he has not been able to solve. His boss wants it solved before he retires, Goodheart said.

Bill and Deorma Wells, Karen Denise Wells’ parents, hope the new investigation will be fruitful, but don’t want to say much right now, they said.

Goodheart said he was in Haskell for eight days in 2006 talking to Wells’ family and friends.

The night Wells disappeared, she called her friend in New Jersey from the motel, her father, Bill, said at the time. Wells told her friend she was going to McDonald’s and then to bed.

But the last time she was seen was at the motel, Goodheart said.

The friend drove to Carlisle to meet Wells. She arrived about midnight Tuesday but didn’t find Wells.

Beds were undisturbed, and there was no sign of a struggle.

When Wells’ friend did not find her in her room at the motel, she filed a missing person report with Middlesex Township, Pa., police.