Five years ago, Bryan Heron walked into Mission Memorial Hospital with a gun.

He was under a restraining order, but nothing restrained him from shooting and killing his estranged wife, Sherry Heron, and his mother-in-law Anna Adams.

That day, Lisa Thompson lost her sister and her mother -- and she says something has to change so it never happens again.

"I think we need to look at the big picture of everything and how it is handled," said Thompson.

B.C. is considering new ways to deal with domestic violence. That could include a death file review by the B.C. Coroner's Service, which has the power to see whether recommendations from previous inquests were implemented, and how effective they were.

"This case and too many more, over and over again women are being failed and left to fight for their lives on their own," said Lee Lakeman of Vancouver Rape Relief.

In 2006, 12 per cent of prosecutions in B.C. were domestic violence cases.

In Ontario, a special court has been set up to handle domestic violence -- but that doesn't happen in B.C.

The province's attorney general, Wally Oppal, says that could change.

"A separate court, or whether we put it into another courtroom, these are things that we would have to discuss with the judiciary," said Oppal.

The province should consider the changes, said Thompson.

"We need all the help we can get, this has to stop, things have to change," she said.