A Lafayette attorney representing a woman whose partner was killed by a drunken driver last year held a news conference Monday to discuss the possibility of filing a civil suit for damages on behalf of the couple’s three young sons.

Warren Perrin, of the firm Perrin, Landry & deLaunay, also called upon area cultural organizations to develop zero-tolerance attitudes toward drunk driving.

“Perhaps now is the time for an attitude shift,” Perrin said on behalf of Ashley Breaux, the mother of three young sons by 33-year-old Joe Wise.

Wise, an unborn child and two teenagers — Cassie Kilby, 14, of Duson, and Kaylin Flyte, a 16-year-old from Crowley who was six months pregnant — died on the afternoon of Dec. 28, 2013, after a drunken driver in a pickup truck crashed into their car on La. 343.

The driver, 59-year-old Charles Moter, was sentenced Thursday to 20 years in prison on three counts of vehicular homicide.

Moter had a blood-alcohol level of 0.18 at the time of the accident, more than twice the legal limit for driving.

“We are continuing our investigation into the persons who may have contributed to this accident,” Perrin said.

The firm is investigating how a passenger in the vehicle with Moter at the time may have enabled him to get on the road that day, Perrin said.