Navigation Boulevard was shut down by local police as they investigated the crime scene. At noon, the paramedics arrived at the hospital. Doctors and nurses tried to revive Selena. When they opened her chest, they found there was no blood at all. They gave a blood transfusion. Selena was a Jehovah's Witnesses and did not believe in blood transfusions, but Selena was unconscious and therefore unable to tell doctors her religion. After 50 minutes, doctors believed the damage was too severe and Selena was pronounced dead at 1:05 pm local time. They announced the cause as cardiac arrest and extensive bleeding. Selena was only two weeks away from her 24th birthday and two days away from her third anniversary to Chris Perez.