Cousins death penalty

Idk I want to vent this has been on my mind since my mum told me Recently I been talking about things I dislike about Islam to her subtlety, like “it’s so evil that anyone would marry a child” and whatnot. A couple months ago I was talking about how sad it is that someone could be killed for not being Muslim, and she told me how that’s what happened to my cousin (I never knew her) She said that my cousin (female) was a young doctor who graduated from Egypt. She’d go to different countries mainly in Africa and help people, whether it be Kenya, Zimbabwe etc. We are Somali so obviously she wanted to help her own people. She was a young woman, unmarried and would travel different countries alone, someone accused her of being a gaal (unbeliever). So one morning she got dressed and ready to go to work, but died in a car bombing. We don’t even know why she was accused of this, if she really was an ex-Muslim or if that was just the perception. I can’t stop thinking of her, and it makes me so angry how Somalia has become so Islamic and scary. I hate this faith so so so deeply, it has done nothing good for anyone. Rant over but my heart is so broken, as a uni student myself I know how hard she must have worked to get to where she was just for it all to be thrown away and for nothing, our family was devastated, this is what we get for trying to help our own people who are extremist psychos. I should mention this was when Al shabaab had insane power. May she rest in peace I think of her everyday.