A barista who was badly burned in an explosion and fire at her Everett stand died on Monday.

Fire investigators said they believe a propane tank contributed to the fire and explosion at Sinners and Saints Coffee stand at 4th Avenue and Everett Mall Way Thursday night, but they have not determined the exact cause.

Courtney Campbell, 25, bought the business just a few months ago, her boyfriend told KING 5. She had planned to open another stand.

Campbell had two young daughters.

Friends are holding a fundraiser on Jan. 16 at Tony V's Garage in Everett. Learn more about the benefit.