The police succeeded in solving the sensational Attingal murder case within 24 hours after the crime and charge sheet was filed on the 83rd day of the crime. The prosecution presented 64 witnesses, 66 documentary pieces of evidence and 42 pieces of material evidence before the court. Other than murder, conspiracy, attempt to destroy evidence and theft, a case of transmitting obscene material in electronic form was also charged against IT professionals Nino Mathew and Anu Shanthi.

16 April 2014:  Omana, 60, a retired government employee, and her son's daughter Swastika, 3, was found murdered at their home. Lijeesh, son of Omana, however, escapes the murder attempt. 
 

Police arrest Nino Mathew from his home at Kazhakuttom on the same day based on Lijeesh's statement. Mathew confesses to the crime and based on his statement, Anu Shanthi, wife of Lijeesh, was also arrested on the same day.  
 

17 April 2014: Police raid the house of Mathew and seize weapons used for the murder - a machete, a sawn-off golf club and bloodstained clothes apart from gold ornaments worn by Omana and Swasthika. Further evidence proving the illicit relationship of Mathew and Shanthi was also recovered from his laptop.
 

 

21 April 2014: Mathew brutally attacked by the employees of Technopark, Thiruvananthapuram when police take him there for collecting evidence. The mob   gathered in front of the building kicks and slaps him soon after he was brought out. 
 

22 April 2014: The police take both Shanthi and Mathew to the crime scene for collecting evidence. 

11 July 2014: Police file a charge sheet under Sections  109, 115,120(b), 302, 307,449,380,201 and 34 of Indian Penal Code and 67(a) of IT act against the two accused based on the investigation that lasted over a year. 

16 April 2016: The Principal Sessions Court pronounces Mathew and Shanthi guilty of murder, criminal conspiracy and attempt to destroy evidence. They were also found guilty of criminal trespass, attempt to murder, theft and transmitting obscene material.  
 

18 April 2016: Thiruvananthapuram Principal Sessions Court awards death sentence to Mathew and Shanthi was sentenced to double life imprisonment.