Grimmie was born in New Jersey, USA on the 12th of March in 1994. This ding day master's chart can either be a strong or a fake vibrant one depending on the hour pillar but base on what has happened, it has to be a strong chart. Mao-xu combined and transformed the xu into fire star with the support of mao month and the lure from the ding fire month stem. There's a likelihood that her hour pillar is wu-shen because the wu earth is her positive HO star which represents her performing star of a talented singer and her creativity of a songwriter.
When reading a chart technically, a strong fire day master does not want the wood star. If wood star is anywhere in the stem, then the water stars are also negative. So, the negative stars in her chart are the water, wood and fire stars. She is now in her negative jia-zi luck pillar.
Below is the chart when Grimmie was shot.
Here is the chart when she passed away.
RIP Christina Grimmie.