At approximately 11:30 PM last night, four people were wounded by gunfire at a Halloween party at the Tutor Campus Center at USC. Two hours later, LAPD had a suspect in custody. This is from Neon Tommy:

One victim is said to have suffered critical wounds to the buttocks and stomach while three others suffered minor wounds. The L.A. Times reported that the gunman targeted one person; the three others were by-standers. They have been transferred to a hospital. USC advised its students to stay away from the area and seek shelter in a secure location.

The campus was put on lockdown after midnight, and some students have reported to Neon Tommy that many people remain sheltered in buildings on campus.

“The scene is secure at the Tutor Campus Center on the University Park campus. There is an ongoing police investigation in progress,” the university said on its website.

Though Neon Tommy has not confirmed the information, one victim is believed to be Geno Hall, a former high school football teammate of USC linebacker Hayes Pullard and Oregon tailback De’Anthony Thomas. Hall posted a picture on Twitter from the USC campus earlier Wednesday night.

A pair of Neon Tommy reporters in the Campus Center courtyard at the time of the shooting reported that they didn’t hear gunshots, but “a mob of people” fled from the main Campus Center building.