|Seen||"Anything You Can Do..."|
|Relationships|| Harry Murdoch, father|
William Murdoch, half-brother
Lucinda Linney, mother
Jasper Linney is a Sergeant in the North West Mounted Police, based in British Colombia, the son of Harry Murdoch and Lucinda Linney and the unknown half-brother of William and Susannah Murdoch. His commanding officer regards him as a bit annoying but he is almost never wrong. He displays analytical behaviour similar to Murdoch.
Following the accidental death of Eria Doakes, an assayer, who apparently broke his sobriety and fell on a set of train tracks, before being killed, Jasper suspected foul play. Not only did it seem unlikely that Doakes would take up drinking again, his personal examination of Doakes' right arm, the largest part of him still intact, found a business card from a Detective William Murdoch of the Toronto Constabulary. As Doakes had met with Humphrey Breen, a Toronto native and geologist, Jasper decided to seek him out. However, by the time he arrived in Toronto, Breen was already dead, apparently having fallen out of a window to catch a butterfly and wasted no time interviewing the victim's neighbours, in spite of the fact that he was out of his jurisdiction, which Murdoch, who had arrived at the scene, reminded him of. After Doctor Julia Ogden arrived to examine the body, Jasper insisted that it was murder, pointing out that the butterfly in the net was also dead, having been planted there by the killer to allay suspicion.
Later taking the discussion to Station House Four, Jasper explained his reasons for being in Toronto. After Inspector Thomas Brackenreid agreed with Jasper's commanding officer to cooperate on the investigation, Murdoch and Jasper interviewed Breen's partner, Vanderlay, as to why Doakes and Breen had met. Apparently, Breen had hired Doakes to do an independent assessment of an ore sample for Arkona Mines for their operation in Pringle Creek, which turned out to be merely ordinary. They proceeded to question Eldon Fremont, Arkona's CEO, but Jasper suspected he was lying because he was looking to the left when he claimed not to have known Doakes.
While examining maps for Pringle Creek's location, Brackenreid informs the two men that he had a possible suspect, Alexander Wilfreds, aka Accidental Al, a killer-for-hire who is an artist in making his victims' deaths look like accidents. Recalling that a rat catcher outside Vanderlay's office resembled Al's sketch, Murdoch and Jasper return to his office, only to find the man seemingly crushed by a fallen bookcase. As Julia's examination determined that Vanderlay's ear drums were perforated before he died, Jasper deduced that Al used a tae kwon do technique to box his ears and stun him long enough to drop a bookcase on him.
After Constable George Crabtree had found Pringle Creek's location, Jasper resolved to go there and find evidence linking the murders to Fremont. Murdoch decided to accompany him after learning that his father Harry had a claim there. Upon arriving in the mining town, they determined from the lack of gold that Arkona was swindling its investors with the promise of gold. They then discover Harry and were both shocked to learn that he was both their father. At the same time, four gunmen started firing at them. Outnumbered and with only Jasper's sidearm for protection, they proceeded to race around town to gather materials to "even the odds". After gathering the materials, Harry revealed that he was an associate of Doakes, who was aware of Arkona's scheme and planned on informing the Toronto Constabulary of their underhanded scheme, so Harry gave him Murdoch's card.
As night fell, the gunmen stormed the trio's hideout in the sheriff office, only to find a makeshift flash grenade, which briefly blinded and deafened the attackers so the two lawmen could move them into the jail cells. The next day, while the NWMPs rounded up the gunmen, before parting company, Jasper advised Murdoch to pursue Julia.
- William and Jasper are brothers, sharing the same father
- Jasper and Julia share a passion and knowledge of poetry, especially the romantics Byron and Shelley
- "Any woman that can recite To A Skylark while opening a human heart is a rare woman indeed, make it right, William."