How did lily owens mother die in the story the secret life of bees?

Lily Owens, the protagonist and narrator of the story, runs away from home after her stand-in mother, Rosaleen, with a vague memory of having accidentally shot her mother at the age of four. Rosaleen is arrested for assault, disturbing the peace, and theft. Specifically, on her way to register to vote, she steals two church fans and pours snuff on the shoes of three of the most racist people in town after being verbally assaulted with racial slurs. After being beaten with a flashlight by the police, Rosaleen is sent to the hospital where Lily breaks her out of jail. Together, they hitchhike to Tiburon, South Carolina on the hunch that Lily's mother, who had written the city name on the back of a photo of a black Virgin Mary, had once lived there.





After arriving in Tiburon, they spot a pink house on the side of the road and are taken in by the Boatwright sisters, who are the owners of a beekeeping farm. They supply Rosaleen and Lily with housing, and Lily becomes an apprentice beekeeper under the guidance of August, head of the household.





Zach, a high school student who works at the apiary to pay for college and become a lawyer, is arrested after refusing to reveal which of his friends threw a bottle at a group of white men protesting a White Hollywood movie star who is bringing a Negro woman with him to a premiere. When May, one of the sisters, hears of this, she commits suicide by drowning herself.How did lily owens mother die in the story the secret life of bees?
I didn't finish the entire book, but either the girl shot the mother or the father did.