RCMP reinstated second-degree murder charges against one of two teenagers involved in a high-profile double homicide case Friday.

In July 2011, the Crown stayed the charges because an interview with one of the accused was deemed inadmissible.

New evidence uncovered during the ongoing murder investigation has allowed prosecutors to move the case back before the courts.

"Significant new evidence came forward that allowed us to recommence the prosecution," said Josh Stewart with Alberta Justice.

"We never gave up. We did not stop and we will continue to gather as much evidence as we can until this matter has gone through court," said RCMP Supt. Gary Steinke.

The youth is now charged with two counts of second-degree murder, possession of a stolen vehicle over $5,000, possession of a weapon and break and enter.

He will appear in Court of Queen's Bench on June 8 for those charges.

He will also appear in Sherwood Park Provincial Court on May 14 on unrelated charges.

The two accused were both 14-years-old at the time of the shooting, which took place on an acreage near Ardrossan in 2009.

Barry Boenke, 68, and Susan Trudel, 50, were found dead on Boenke's property by RCMP after Edmonton police pulled over two youths in a pickup truck registered to Boenke.

The two teenagers had run away from a treatment facility near Sherwood Park called Bosco Homes a day before their arrests. The facility has since been closed.

The charge had originally been for first-degree murder but was then quietly downgraded to second-degree before it was stayed in July.

News of the charges was welcomed by Boenke's sister Gerlind Koesling, who said her "prayers had been answered."

Koesling followed the case closely and was shocked when the charges were stayed.

"We all feel that injustice happened," Koesling told CTV News in an emotional interview Friday.

"I hope that this time something will actually be done and that the guilty party or parties are charged and that they have to pay for their crimes."

RCMP are still investigating.

Anyone with information is asked to contact Strathcona RCMP or Crime Stoppers at 1-800-222-TIPS (8477).

With files from David Ewasuk