3 arrested in connection to 16-year-old girl found shot to death in Liberty Co.

Three people have been arrested in connection with the murder of a 16-year-old girl found shot to death in Liberty County earlier this month. 

Authorities identified the victim as 16-year-old Emily Rodriguez-Avila.

BACKGROUND: Authorities identify 16-year-old found dead in Liberty Co.

According to officials, Kevin Rivera-Ortiz, 19, who is a former boyfriend of Rodriguez-Avila, Joel Garcia-Martinez, 20, and Katherine Alvarez-Flores, 20, were arrested in Houston and charged with murder as part of a joint effort between multiple agencies. 

Alvarez-Flores is also charged with tampering or fabricating physical evidence. 

MORE: Girl, 16, found shot to death on side of road in Liberty County

The discovery was made after a motorist called 911 to report finding Rodriguez-Avila on the side of County Road 3550, near County Road 5708. 

Authorities said Rodriguez-Avila died from what appeared to be a gunshot wound.

Officials said they are awaiting autopsy results to determine any other factors in her death.