Once Alonzo's friends arrive at his home, they begin drinking before attending the party later that night.

Alonzo rides with Justin around 10:00pm. Daniel and Tyler drive to party in a second car.

The party is at a farmhouse that was being rented by an unnamed 20-something male from Gardner. When Alonzo and Justin arrive shortly after 11pm, there are approximately 100 people are present. The group includes others from Gardner and also La Cygne locals unknown to Alonzo and his friends.

Location Where Alonzo Was Last Seen Alive

Sometime before 12:30am, a male partygoer, unknown to Alonzo and his friends, makes a racist remark. Some would later report that the incident was sparked by Alonzo flirting with a white girl. Daniel breaks up the altercation by stepping between Alonzo and the male. Afterwards, Alonzo remained at the party and was reported by his friends to be in good spirits. Police note it was a challenge to nail down accurate times from the partygoers due to this being the weekend when time converted to Daylight Savings.

Location Where Alonzo Was Last Seen Alive

Daniel and Tyler say good-bye to Alonzo before departing for another party around 12:30 am. They report all was well at this time.

Location Where Alonzo Was Last Seen Alive

Justin leaves party with a friend to get cigarettes and has car trouble. He calls his friend, Adam, at the party, tells him he can’t get back to the farmhouse, and asks Adam to give Alonzo a ride home. Justin says he hears Alonzo in the background, ragging on him for the car troubles. Justin later withdraws $200 from an ATM and he and his friend go to a strip club, from which they are ejected.

Location Where Alonzo Was Last Seen Alive

Adam is unable find Alonzo at the party, he assumes Alonzo has taken a ride from someone else, and leaves.

Location Where Alonzo Was Last Seen Alive

Dane Hartman, a friend of Alonzo, tells police later on that people he has spoken to said they last saw Alonzo “sprinting” away from the party at about 4:00am. No one knew why he was running. Hartman says thought it was odd, because Alonzo had an injured ankle.

Location Where Alonzo Was Last Seen Alive

Alonzo’s mother receives a call from someone who asks if Alonzo is there. She looks in Alonzo’s bedroom, sees his bed has not been slept in, and realizes he hadn't returned home the previous night. She calls Alonzo's friend, Rodney English, in Topeka and asks him to drive to Garner to assist in the search.

Rodney, Justin and Billy Brooks Jr drive to the farmhouse. Rodney reports that they found one of Alonzo's boots in the grass near the entrance of the driveway to the farmhouse. Alonzo's hat and the other boot are found together in weeds directly across the road from the entrance of the driveway to the farmhouse.

Location Where Alonzo's Hat & Boots Were Found

Dane and Alonzo’s brother, Stuart Porter III, go to the farmhouse to search for Alonzo. They talk to the occupants of the farmhouse who say they know nothing. Dane and Stuart then canvas the town, showing a picture of Alonzo and asking if anyone had seen him. No one reports seeing him.

After no one is able to find Alonzo, his mother, Maria calls the Linn County Sheriff's Office and reports him as missing.

The Sheriff's Department conducts a search of the farmhouse area and finds nothing.

Location Where Alonzo Was Last Seen Alive

The Linn County Sheriff's Office turns the case over to the Kansas Bureau of Investigation, which conducts a more extensive search with a canine unit and other special investigators. An aerial search also is conducted. Nothing is found.

Alvin Brooks (no relation to Alonzo), a Kansas City, Mo., city council member and president of Move Up, a Kansas City anti-crime organization, reports to the FBI that he had received phone calls through Move Up’s hotline suggesting that Alonzo may have been the victim of a racially-motivated crime. The FBI then opens an investigation into Alonzo's disappearance.

The divers were unable to find anything in the 3-foot deep creek.

Middle Creek

After receiving "permission" from the Linn County Sheriff's Office, Alonzo's family and friends conduct a search in La Cygne.

Within approximately 90 minutes of searching, they find Alonzo’s body in brush and branches at the bottom of an embankment at the edge of Middle Creek, approximately 100 yards from the farmhouse. His body was found in an area that had already been search several times. Linn County Sheriff, Marvin Stites, theorizes that rainfall may have caused the creek to rise and move the body to the location where it was recovered.

Middle Creek

Alonzo's cause of death is ruled “Undetermined,” due to the state of advanced decomposition. There was no evidence of broken bones, no signs of blunt force trauma, or injury. The coroner also indicates that there were no signs of drowning in the lungs. Due to severe decomposition of the soft tissue around the neck, it could not be determined if Alonzo was strangled.

The FBI and U.S. Attorney for Kansas, Stephen McAllister, announce the case has been reopened and that the FBI is now investigating Alonzo’s death as a potential racially-motivated crime. McCallister stated, “It defies reason to believe that Alonzo’s death was a suicide or that he somehow accidentally tumbled into a relatively shallow creek in Linn County, leaving behind his boots and hat, all with no witnesses whatsoever.”

Following the announcement that Alonzo's case has been reopened, the Federal Bureau of Investigation offers a $100,000 reward for information "leading to the arrest and conviction of anyone responsible for the death of Alonzo Brooks". In the same press release, the FBI announces that they are reinvestigating Alonzo's case as a "potential racially-motivated crime" or a hate crime. Also during the press conference, officials with the FBI make an appeal for information regarding a second party that occurred on the night of Alonzo's disappearance and death. According to officials, they had recently learned that a different confrontation occurred at the second party, and that many of the second party's attendees also attended the party at the farmhouse.

Alonzo's case is featured in the new 'Unsolved Mysteries' reboot on Netflix, in an episode titled "No Ride Home". According to producers shortly after the episode's initial airing, the production team has received around 20 tips that producers feel are credible.

Alonzo's body is exhumed for a second autopsy, as a part of the on-going investigation.

Mt. Calvary Cemetery

U.S. Attorney Stephen McAllister reports that Alonzo’s remains are undergoing examination by forensic experts at Dover Air Force Base, who believe the death may be a homicide. McAllister notes that the experts are focusing, in particular, on the advanced decomposition around the neck and throat area. It is also reported that a group of people who had attended a party about 1.5 miles from the farmhouse and later arrived at the same party attended by Alonzo, are being investigated. A fight had occurred at a different party, and McAllister states that, “a lot of rather violent and aggressive partiers” went from this location to the party at the farmhouse.