Since Bobbi Kristina Brown was first hospitalized on Jan. 31, few details have emerged about why the 21-year-old daughter of singers Whitney Houston and Bobby Brown was found unresponsive in her Georgia home. Her boyfriend, Nick Gordon, remains a suspect, and ongoing conflict between the Browns and the Houstons has made Bobbi Kristina’s story more tragic as time rolls on.

Here’s a timeline of what we know so far:

January 2015

February 2015

March 2015