When does Who Killed Sara? return?

Who Killed Sara? (Spanish: ¿Quién mató a Sara?) is a Mexican mystery thriller streaming television series created by José Ignacio Valenzuela and produced by Perro Azul. The series stars Manolo Cardona as Álex Guzmán, a man convicted for the murder of his sister. Season 2 premiered on 19 May 2021, two months after the release of the first one.
Álex Guzmán is hellbent on finding out who killed his sister Sara and getting revenge on the Lazcano family who wronged him. He spent 18 years in prison for a crime he did not commit.