Will update post if EPD has any new information.
From Operation Safe Streets:
Apparently it's HAMMER TIME at 4th Street McDonald's. EPD and medical are enroute to an assault that just occurred. Subject was reportedly hit with a hammer in the head. Suspect ran north from Mcdonalds.
12:04pm - Numerous EPD units on scene.
12:16pm - EPD has one male subject detained. I'm guessing it's the other end of the altercation. Subject is uncooperative but detained.
(Updated) 12:23pm units cleared so it's unknown if that was the suspect.