Elsa Jean is turning 26 in Elsa was born in the 1990s.
Direct Models said Lua had been battling addiction for some time and was seeking help.
What prompted her suicide remains unclear but in the days beforehand, she found herself in the center of a firestorm on Twitter after publicly saying that she had refused to work with a man she knew did both straight and gay scenes.
It is not clear if any of the five models who have died recently knew one another.