Ascension Parish Sheriff STOCK _lowres

File Photo of Ascension Parish Sheriff's vehicle.

A Gonzales teen shot and injured two people at a Prairieville graduation party Friday, fired off a gun at a vehicle full of people early Sunday morning and has since been arrested, sheriff's deputies said. 

Ascension sheriff's deputies said on Thursday that Keelan Irvin Jr., 17, opened fire Friday at a Prairieville event hall on Airline Highway near Commerce Lane after some kind of dispute arose at the party.

Sheriff's detectives didn't understand Irvin's alleged involvement in the incident on Friday until after they began investigating another shooting shortly before 1 a.m. Sunday near Lamar-Dixon Expo Center and the city of Gonzales, deputies said.

In a statement, Sheriff Bobby Webre said Irvin opened fire toward a vehicle near a mobile home on South St. Landry Avenue. The vehicle had six people inside, but no one was injured.

That shooting happened after a fight previously between a close relative of Irvin's and the six people in the vehicle, said Donovan Jackson, sheriff's spokesman.

After responding to the Sunday incident near Gonzales, sheriff's detectives learned that Irvin had been involved in the earlier shooting on Friday in Prairieville. The two people shot there had non-life-threatening injuries, deputies said.

Jackson said some kind of dispute arose at the Friday graduation party, apparently leading to the shooting.

Irvin is virtual student in Ascension Parish public schools, attending in the Blended Learning Program through APPLe Digital Academy, a schools spokeswoman said.

Jackson said the two shootings aren't connected, adding that, besides Irvin, no one at the Prairieville graduation party on Friday was involved in the shooting near Gonzales early Sunday.

Irvin was arrested Tuesday and booked on six counts of attempted second-degree murder, seven counts of aggravated criminal damage to property, and two counts each of illegal use of weapons and negligent injuring, deputies said.

Irvin was being held Thursday in Ascension Parish Prison on combined bail of $145,000, online records say.

Both incidents are part of ongoing investigations, deputies said, and further details may be limited at this time.

David J. Mitchell can be reached at dmitchell@theadvocate.com.