**Updated** Halifax medical student committed murder in bid to alleviate debt load: Crown

The Crown says Halifax medical student William Sandeson – motivated to alleviate his debt – lured Taylor Samson to his apartment and shot him in the back of the head during a drug deal.

Sandeson is charged with the first-degree murder of the 22-year-old Dalhousie University student, whose body has never been found.

The trial heard Samson went to Sandeson's apartment to sell him 20 pounds of marijuana for $40,000 on Aug. 15, 2015.

In her closing arguments Tuesday, Crown lawyer Kim McOnie noted Sandeson told police three different versions of what happened that evening, and suggested to the jury that none of those versions are true.

She said Sandeson repeatedly changed his story to fit the information police confronted him with, and that evidence presented at the trial disproves each of his versions.

McOnie argued Sandeson – who was slated to start medical school within a week of his arrest – was motivated by money, noting he was in debt and that police only recovered roughly $7,200 cash.