Police Report Details Chattanooga Shooting Suspect's DUI Arrest on 4/20

— -- The man who allegedly opened fire at two Chattanooga, Tennessee, military installations this week, killing five service members, was arrested for driving under the influence just three months before the deadly attack.

An arrest report obtained by ABC News details a stop on April 20, 2015, in which Mohammad Abdulazeez was pulled over around 2 a.m. for failing to stay in his lane, "driving over 10 mph under the speed limit, and stopping at green lights."

During the stop, an officer noticed that Abdulazeez's car smelled like alcohol and marijuana, the report said.

The police described his eyes as bloodshot, watery and droopy. An officer said Abdulazeez "was unsteady on his feet at times" and that he slurred and mumbled his speech.

An officer also noted that Abdulazeez had irritated nostrils and a white, powdery substance under his nose. Abdulazeez told the officer that he had “crushed up caffeine pills and snorted them” and that he was around friends who were drinking and smoking marijuana.

Abdulazeez, 24, was charged with driving under the influence. He refused to consent to the state blood test, police said.

Abdulazeez is the suspect in Thursday's shootings at Chattanooga's Navy Operational Support Center and the Marine Reserve Center that left five service members dead. Abdulazeez also died in the shooting.