HAYWARD, Calif. (KGO) -- In Hayward police are investigating a homicide with no body. Stacey Aguilar, 22, was last seen on Saturday.
The woman who hosted the party and lives at the home tells ABC7 News that Aguilar left around 1 a.m. with her boyfriend. She said both had been drinking, but nothing seemed out of the ordinary.
Aguilar's family in San Jose reported her missing following a house party she attended in Hayward.
Hayward police Sgt. Ryan Cantrell said, "As a result of our investigation, we developed information and evidence that she possibly the victim of a homicide."
Police interviewed people and investigated a crime scene, but are only saying they believe Aguilar was killed in Hayward. People who live at the house on Silva Avenue near Jackson Street say the 22-year-old left the birthday party with her boyfriend unharmed.
"We don't have a body, which makes it even more complex and the other part is that we don't have anyone in custody for the homicide," Cantrell said.
Police have not named a suspect. Neighbors are watching the case closely.
Hayward resident Jorge Rivera said, "This is kind of weird, you know, and you're afraid because my son has two kids you know."
Detectives are asking anyone with information to come forward. You can make an anonymous tip.