On Friday, February 22, 2002, Pickton was arrested and charged with two counts of first-degree murder in the deaths of Sereena Abotsway and Mona Wilson. On April 2, 2002 three more charges were added for the murders of Jacqueline McDonell, Diane Rock and Heather Bottomley. A sixth charge for the murder of Andrea Joesbury was laid on April 9, 2002 followed shortly by a seventh for Brenda Wolfe. On September 20, 2002 four more charges were added for the slayings of Georgina Papin, Patricia Johnson, Helen Hallmark and Jennifer Furminger. Four more charges for the murders of Heather Chinnock, Tanya Holyk, Sherry Irving and Inga Hall were laid on October 3, 2002, bringing the total to fifteen, making the investigation the largest of any serial killer in Canadian history. On May 26, 2005, twelve more charges were laid against him for the killings of Cara Ellis, Andrea Borhaven, Debra Lynne Jones, Marnie Frey, Tiffany Drew, Kerry Koski, Sarah de Vries, Cynthia Feliks, Angela Jardine, Wendy Crawford, Diana Melnick, and Jane Doe unidentified woman bringing the total number of first-degree murder charges to 27.