The 19-year-old woman shot Thursday morning after a Town 'N Country dispute has died, deputies say.
Essence Jade Jovan Williams suffered a gunshot wound at Harbour Walk Apartments between 3:30 a.m. and 4 a.m.
Deputies responded after getting a call about a domestic disturbance.
When they arrived, Williams had already been shot.
At first, investigators said the wound appeared to be self-inflicted.
But on Friday they said they were still investigating the incident and its cause.
They said Williams' boyfriend, John Echevarria, 18, walked away from the scene Thursday as fire rescue paramedics attended the wounded woman.
Deputies issued a notice Thursday saying they wanted to speak to Echevarria, noting that he might be able to help them determine if the shooting was accidental or intentional.
On Friday afternoon, the Hillsborough County Sheriff's Office released a statement saying it had spoken to Echevarria and released him.
Sheriff's spokeswoman Debbie Carter said that Williams and Echevarria had been staying with two friends at 8320 Crystal Harbor Drive, Apt. 202, at the time of the incident.
"We believe it was an argument between Echevarria and Williams," Carter said of the dispute that prompted a 911 call.
Anyone with information is asked to call Sheriff's Office at (813) 247-8200.