Two weeks before Briana Martin died, her boyfriend called police to warn that Nanaimo's drug dealers were becoming more "aggressive."

Steven Whitehead had already done what he could to keep the 27-year-old away from the toxic drugs that were repeatedly causing her to overdose — even reaching out at one point to a drug dealer he knew to ask for help.

That dealer said he'd stop selling to Martin, writing in a text that he would "block Bree's number and never deal with her."

"Trust me," the dealer wr…