I agree--the fact that it's her son makes it so powerful.
For me, memoir/fiction doesn't make a difference here.
I too would read on, regardless. But you might consider rephrasing either "myself" or "my son" so you don't have the inadvertent rhyme they create by their juxtaposition. Also, to my ear, "asked me" seems to add too many syllables. "How would you like it if I committed suicide?" Jake said. I'm not against long sentences in general, but this situation packs such a punch, it seems like the shorter the better.
I've got the first line nailed down now, thanks to you all:
"How would you like me to kill myself?" my son, asked me.
But I have a punctuation question. I know there's usually a comma inside the quotation mark (myself," my son asked me.) But it's a question, so I need the question mark. Anyone know the proper punctuation?
I can help you with this--worked as a copyeditor for years and had to practically memorize the Chicago Manual of Style. No need for comma when you have the question mark. The way you have it here is fine.
But you do need to delete the comma after "son": "son asked" not "son, asked."