It's a grassroots movement to raise awareness of trans identities.
Blake Brockington is the fifth trans teen to die in 2015 after leaving a note on social media.
Facebook loses another LGBT advocate.
A slew of proposed laws require that trans teens use bathrooms according to their assigned gender.
The trans woman became the subject of the hashtag #JusticeForIslanNettles when she was murdered in 2013.
At least three trans teens have attempted suicide this year after leaving a public message on social media.