A young father was shot and killed in a Kailua parking lot over the weekend, and a 24-year-old woman has turned herself in — a loss that has shaken the local community.

• Thomas Malone, 30, known as Tommy Boy, was killed Saturday night in the Target parking lot in Kailua.
• He was a father of three with a fourth child on the way, and a standout high school athlete in football, soccer, and track.
• Police say two groups were arguing before the shooting, and a 24-year-old woman surrendered Monday night on second-degree murder and gun charges.
• Prosecutors are still deciding official charges, and police are asking for photos and videos from anyone who was in the area.
• The killing has added to worry about gun violence spreading into parts of Oahu where people least expect it.

Outlook: Formal charges are expected soon, and the family is planning a candlelight vigil in the coming days.