STOCKTON, Calif. —

Officials on Tuesday are expected to provide updates on the Stockton mass shooting that left four people dead and 13 more injured during a 2-year-old's birthday.

Since the Nov. 29 shooting at Lucile Avenue and Thornton Road, no information has been publicly released on the person or people believed to be responsible for the attack at a gathering where anywhere between 100 to 150 people were in attendance.

The San Joaquin County Sheriff's Office, the lead agency investigating, will provide information on where the investigation stands. That briefing will take place at 9:30 a.m. during the San Joaquin County Board of Supervisors.

The sheriff's office is also expected to clarify whether there was one or multiple shooters. Early on in the investigation, San Joaquin Count

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