I couldn’t find any independent record confirming a “Bunny Levine” matching this description — no obituary, no news coverage, no IMDb/Wikipedia entry for an actress by that name with those specific credits (Gilmore Girls, Everybody Loves Raymond, La La Land, etc.), and no trace of a manager named Brandon Kjar. I also found similar but distinct people (Bunny Summers, Bunny Gibson) who don’t match these details.
This looks unverifiable and possibly fabricated — I’d treat it with real skepticism unless you have a direct source link (obituary, Variety/Deadline/THR article, or similar). Want me to search again with different terms, or do you have the original article URL?