A man has been convicted of her murder.
The two teens had reportedly been involved in multiple arguments.
He killed her following an argument with her mother.
Her death marked the first murder in the city of 2018.
Sisters Nia and Tashiya Wilson were attacked at a train station in Oakland. Their assailant is on the run from the law.
Tynisha Ysais's was only 21-years-old when a rapper murdered and cannibalized her body.