AUSTIN (February 21, 2013)--The Texas Department of Public Safety has expanded its efforts to solve cold case slayings by offering an online update on a dozen investigations.

DPS officials unveiled the Texas Rangers unsolved homicides webpage on Wednesday.

It features two cases from each of the agency's six regions.

The public will have the opportunity to submit tips or other information online via the webpage.

Director Steve McCraw said the DPS wants to send a clear message that investigators are not giving up on the victims.

“Cold cases are typically challenging to solve for a variety of reasons, but we want to send a clear message that we are not giving up on these murder victims,” McCraw said.

“Our goal for this webpage – and the investigative efforts supporting it – is to shine a new light on these crimes, so they are not forgotten. We are committed to bringing these ruthless criminals to justice and to bringing some amount of closure to the families involved,” he said.

Texas Rangers and local law enforcement agencies will also take another look at evidence and persons of interest.

Many of the unsolved cases involve smaller or rural law enforcement agencies including the 2007 disappearance of Craig Jim Martin who authorities think was killed and then buried in Leon, Madison or Brazos County.