CHICAGO (CBS) — A gathering Saturday honored slain mother Marlen Ochoa on what would’ve been her 20th birthday.

Twenty red balloons were released into the air in Pilsen, each one representing a year of Ochoa’s life.

READ MORE: Northwestern University Bans All Social Activities At Campus Fraternities Until At Least Mid-October After Reports Of Drugging

The pregnant mother was murdered back in April.

READ MORE: Family Remembers Azul De La Garza, Young Woman Shot And Killed In West Elsdon, As 'Beautiful Soul' With A Future In Art

Ochoa was nine months pregnant at the time, and her baby cut from her womb. The infant later died.

MORE NEWS: 6 Killed, 43 Wounded In Weekend Shootings Across Chicago

Three people have been charged in the death of Ochoa and her baby, including Clarisa Figueroa and her daughter Desiree.