Charged on January 21, 2014, with the shooting of a Banco Estado security guard in revenge for the death of the anarchist comrade Sebastian Overluij. She was stopped when entering a nearby station a with the loaded revolver. Sol is the niece of the Vergara brothers, killed by the dictatorship and granddaughter of Luisa and Manuel, who have held a memorial every March 29th, the day that their children were murdered.

On February 4, 2015, the court in Santiago issued its judgment against Tamara Sol. The court acknowledged the mitigating factor of her previous irreproachable conduct, but denied that Tamara Sol substantially collaborated in clarifying the facts, considering that neither her statement given to the prosecution at the stage of the investigation with which she admitted to the facts, nor her consent to the realisation of several expert reports contributed anything, since the evidence was already available to the authorities from the moment of her arrest. In addition, the defense’s proposed mitigating circumstance of diminished capacity, based on expert testimonies by psychologists, was dismissed.

In fact, the presiding judge adopted the prosecution’s argument that spoke of a premeditated action, alleging that this has been demonstrated by the cry "revenge for Sebastián" attributed to Tamara Sol at the time of opening fire on the guard, and emphasising the fact she chose not to make any declaration during the trial. Thus, while the defense sought recognition of two mitigating circumstances in order to request a sentence of 3 to 5 years and the application of the alternative sentence of release under intensive supervision instead of actual imprisonment, this objective was not reached.

In particular, Tamara Sol Farías Vergara was convicted of aggravated attempted homicide and sentenced to 7 years in prison, perpetual disqualification from holding any public duty and office and from practicing political rights, and absolute disqualification from maintaining or obtaining any professional license for the duration of the prison sentence. She was also convicted of theft regarding the gun of the security guard and sentenced to 61 days in prison and a fine of almost 215,000 Chilean pesos (300 euros) and ordered to pay the court costs.

She was released on conditional release on October 16, 2019.