In November 1827, Burke and Hare stole the body of a dead tenant, an old army pensioner who owed Hare £4 rent, from its coffin and sold it to the Edinburgh Medical College for £7. This was their first meeting with Dr. Robert Knox, a leading Edinburgh anatomist.
Burke and Hare then shifted their tactics from grave-robbing to murder, as they were paid more for the very fresh corpses.
In all ther were 17 victims sold to the Edinburgh Medical College for dissection. Their principal customer was Doctor Robert Knox.