LOOKING BACK: Timeline on the Atio hazing case

1 a.m. - Aegis Juris members begin the first stage of the final initiation rites. Ten members punch Atio while seven others drink and sing to drown the sounds of hazing. Axel Hipe presides as the master initiator.

During the second stage of initiation, a spatula is used on Atio to reduce the swelling of his muscles.

On the third and final stage, Atio is supposed to receive 11 paddle hits from members, being a solo initiate. On the third hit, he is asked if he can still take hits, to which he responds in the affirmative. He collapses on the fourth paddle, muttering unintelligible responses.

5 a.m. - Atio is hit for the fifth. He collapses and loses consciousness. Members start to panic and attempt to resuscitate him, dropping candle waxes on his body to test his response.

6:20 a.m. - John Paul Solano, a medical technologist on leave from law studies in UST, gets a call from a fraternity member asking him to go to the fraternity library on Laon-Laan Street. Solano ignores the request.

7:10 or 7:15 a.m. - Solano gets another call and is told that a neophyte collapsed during initiation rites.

Before 8 a.m. - Solano leaves his home in Caloocan.

Around 9 a.m. - Solano arrives at the fraternity library and performs CPR on Atio. He tells frat leaders the "half-dead" Atio needs to be brought to the hospital. Frat leaders decide to bring Atio to Chinese General Hospital instead of UST Hospital, which is closer.

9:21 a.m. - Atio is declared dead on arrival at Chinese General Hospital. His body is brought to Archangel Funeral Homes in Sampaloc.

12 noon - Civil Law Dean Nilo Divina, an Aegis Juris alumnus, is informed by Civil Law Faculty Secretary Arthur Capili, also an Aegis alumnus, that a student died following the fraternity's hazing rites.

12:15 p.m. - Divina asks Capili to confirm if a neophyte indeed died during the Aegis Juris Fraternity hazing rites.

6 p.m. - Death of a freshman surnamed "Castillo" is confirmed, as recalled by Divina during a Senate inquiry. He is unable to inform the family because he does not have the full name of the victim, and office records are inaccessible on Sundays.

10 p.m. - Atio's parents go to UST Hospital but fail to find their son.

Around 10 a.m. - Atio's remains arrive at Santuario de Antonio in Makati for the wake.

Around 1 p.m. - Solano is named a “person of interest” in the case because of inconsistencies in his statements to the police.

10:00 a.m. - The Bureau of Immigration says Ralph Trangia, a member of the Aegis Juris and a suspect to the death of Atio, left the country and flew to Chicago via Taipei on Sept. 19.

10:00 a.m. - Solano is brought to the inquest at the DOJ. Manila police file criminal charges against 19 suspects in fatal hazing, including Trangia's parents.

6 p.m. - The Senate conducts its first hearing on Atio's death, led by Lacson, chairman of the Senate Public Order and Dangerous Drugs Committee.

Solano discloses the names of at least six individuals involved in the Aegis Juris Fraternity hazing rites in an executive session.

READ: Murder, hazing, robbery charges filed against Aegis Juris fratmen

Manila police search the Aegis Juris library for evidence after getting a warrant. Later that day, Solano is released from detention.

READ: Lead suspect in hazing victim Castillo’s slay freed

Kapunan urges authorities to investigate UST officials including Civil Law Dean Nilo Divina for possible irregularities that led Atio’s death.

Three members of the Aegis Juris Fraternity who allegedly carried Atio's body near the fraternity library are identified by a witness.

Aguirre announces that the United States Homeland Security is ready to deport Ralph Trangia on the request of the Philippine government.

Trangia returns to the Philippines via Eva Air Flight 271 with his mother Rosemarie.

DOJ offers a place for Trangia and his family under the Witness Protection Program.

READ: Hazing suspect back in Manila, eyed as state witness

The Senate Committee on Public Order and Dangerous Drugs issues subpoenas for suspects behind the hazing death of Atio.

In a Senate press briefing, Sen. Francis “Chiz” Escudero condemns the UST administration’s "apparent apathy and indifference" on the fatal hazing of Atio.

DOJ continues preliminary investigation of hazing death of Atio.

Aegis Juris members file their counter-affidavits at the DOJ hearing.

Divina fails to attend the preliminary investigation, but is represented by his legal counsel, Estrella Elamparo.

Divina and 64 others are placed under the DOJ's immigration lookout order, in connection with the probe into the hazing death of Atio.

Divina files a counter-affidavit to the DOJ, denying any liability in Castillo’s death.

The Manila Police District releases its final medico-legal report, saying Atio died of “severe blunt traumatic injuries.” It matches the histopathological report.

Supreme Court orders Balag’s release from Senate detention, where he was held for over two months.

READ: Aegis Juris leader freed from Senate detention

Senate panel report calls for the disbarment of Divina and 18 other lawyers who are alumni of the fraternity.

READ: Senate wants UST law dean disbarred for ‘mockery of the legal profession’ in Atio’s death

Senate approves Anti-Hazing Act on third and final reading.

READ: Senate approves Atio Castillo Law

UST administration expels eight unnamed students who were involved in Atio’s hazing..

READ: UST expels 8 Civil Law students in Atio’s hazing death

Two of the indicted fratmen, Salamat and Ramos, file motions to dismiss or to be allowed to post bail before the Manila Regional Trial Court (RTC).

READ: Aegis Juris fratmen seek bail after indictment in Atio case

A day after arrest warrant was released, the 10 fratmen surrender to the National Bureau of Investigation (NBI).

READ: Aegis Juris fratmen in Atio hazing case surrender to NBI

OSA suspends recognition of all fraternities and sororities in the University for Academic Year 2018 to 2019.

READ: Student Affairs orders ‘indefinite’ suspension of fraternities, sororities

President Rodrigo Duterte signs the amended Anti-Hazing Act into law, banning hazing in all forms and imposing stricter penalties.

READ: New law banning all forms of hazing signed

Mark Anthony Ventura, the prosecution’s first witness, breaks down on the stand as he identifies his 10 fraternity brothers.

READ: Ventura, emosiyonal sa pagtestigo laban sa mga miyembro ng Aegis Juris