Police said Viridiana's brother, 19-year-old Eduardo Arevalo, has since confessed that he strangled her and killed her on Dec. 16.
He told detectives he put her body in the trunk of his car and disposed of it in a remote area about an hour away from The Colony.
“As the week went on, Eduardo stated that he wanted his family to know where Viri was at so he went and picked up her body and brought her back Sunday morning in the early morning hours and dumped her body in the alleyway,” said Sgt. Aaron Woodard with The Colony Police Department.
Eduardo told detectives his sister was an “embarrassment to their family” and he stated that “it would be better off that she wasn’t here,” police said.
He also admitted to writing the note and staging his sister’s disappearance to make her death appear to be a suicide.
“We really want to thank members of the community for sharing their home surveillance and doorbell cameras with us because that really assisted the investigation and helped piece together the timeline for this,” Sgt. Woodard said.
Police said Viridiana’s baby was her boyfriend’s child. They don’t believe he or anyone else in her family was involved in her murder.
Eduardo is being held in The Colony jail. He was charged with capital murder and could face additional charges.