He emigrated from Colombia and transitioned to his true self

When Mateo Guerrero immigrated to Queens in 2010, he was a queer undocumented teenager called Katherine. When he came out to his mom shortly afterward, she pleaded with Guerrero not to become a man. When his father found out that Mateo wanted to transition, he left the family and returned to their home in Colombia.
Eventually Guerrero’s mom accepted his identity and supported his transition. Three years ago, he started going by Mateo and binding his chest. A year later, he began injecting