Key dates related to Pickton court case and to investigation that led to him

The Supreme Court of Canada rules Friday on whether Robert Pickton deserves a new trial for the murder of six women. Here are some key dates related to his court case and to the investigation that led to him:

1991: Relatives and friends of a growing list of missing women from the Downtown Eastside neighbourhood begin an annual Valentine's Day march to press for a police investigation of the disappearances.

August 1997: Marnie Frey is last seen.

September 1998: Vancouver police set up a team to review files of as many as 40 women missing as far back as 1971 from the poor neighbourhood.

February 1999: Brenda Wolfe is last seen.

March 1999: Georgina Papin is last seen.

June 2001: Andrea Joesbury is last seen.

August 2001: Sereena Abotsway is last seen.

September 2001: Vancouver Police and RCMP form a joint task force in response to growing criticism and take over stalled Vancouver police investigation.

November 2001: Mona Wilson last seen.

Feb. 5, 2002: Task force and RCMP officers enter Robert William Pickton's Port Coquitlam farm with a firearms warrant.

Feb. 22, 2002: Pickton charged with first-degree murder of Abotsway and Wilson. Over the next several years more charges are added until Pickton faces 26 charges of first-degree murder.

June 6, 2002: Police begin massive forensic excavation of Pickton family's sprawling farm property with help of archeologists.

Nov. 18, 2003: Police end mass excavation and search of property.

May 2005: Crown lays final 12 murder counts.

Jan. 22, 2007: Pickton's trial begins on six of the 20 charges.

Dec. 9, 2007: After an 11-month trial and almost 10 days of deliberations, a jury finds Pickton guilty of second-degree murder of Mona Wilson, Georgina Papin, Marnie Frey, Brenda Wolfe, Sereena Abostway and Andrea Joesbury

March 30, 2009: B.C. Appeal Court hearing begins into Pickton's request for a new trial.

June 25, 2009: B.C. Appeal Court rejects Pickton's appeal.

Oct. 29, 2009: RCMP wraps up investigation, delivering final report to Crown on six more women whose DNA was found on the farm. No charges have been laid in those cases.

March 24, 2010: Supreme Court of Canada hears appeal.