KELSO, Wash. (AP) — A woman and child whose remains were found in three different rivers 20 years ago have been identified with DNA evidence, and the husband and father is being sought, Cowlitz County sheriff’s deputies said Tuesday.

Relatives of Ashok Kumar Narain say he has not been seen since several months after his wife, Raj Narain, 24 at the time, and their 14-month-old daughter, Kamnee Koushal Narain, disappeared, Deputy Charles J. Rosenzweig wrote in a news release.

Detectives from the sheriff’s office and police in Eugene, where the Fiji islanders were living in 1987, have been searching for Ashok Narain for a year, Rosenzweig said.

“We want to keep an open mind about why he’s disappeared,” Rosenzweig told The Daily News of Longview, “We and the families, both his and hers. No one has been able to locate him.”

Three fishermen found Raj Narain’s torso in the Lewis River near Woodland on Sept. 11, 1987. A few days later, her legs were found in the Willamette River in Portland, and on Sept. 24 a fisherman found the toddler’s body floating in the Cowlitz River near the confluence with the Columbia River.

Investigators were largely stymied until April 2006, when Robert Narayan of Woodland, Calif., called Kelso police and said his brother, Ashok Narain, had been missing since April of 1988 and that his brother’s wife and daughter also had vanished, Rosenzweig said.

Narayan said his call was prompted by his discovery in an Internet search of an article published by the Seattle Post-Intelligencer that mentioned the unsolved deaths in 2003.

DNA samples showed the woman and child were mother and daughter and were related to Raj Narain’s siblings, Rosenzweig said.

Detectives have traveled throughout Washington, Oregon and California and have found several people named Ashok Narain, but none have been the person detectives are looking for. He is now listed in the National Crime Information Center database as a missing person.