( CNN ) -- Trayvon Martin 's father says his heart is broken but his faith is not . `` God blessed Me & Sybrina with Tray and even in his death I know my baby proud of the FIGHT we along with all of you put up for him GOD BLESS , '' Tracy Martin wrote , in the first of three tweets sent about 30 minutes after the not-guilty decision was read in the Sanford , Florida , courtroom . By midnight , it had been retweeted more than 20,000 times . Neither Tracy Martin nor Sybrina Fulton , Trayvon 's mother , was in the courtroom Saturday night when a six-woman jury acquitted George Zimmerman in the death of their son , Trayvon . An attorney for the family said he told family members it would be better if they went home so they could attend church in the morning . Attorney Darryl Parks did n't say where Martin and Fulton were spending the night but called it a `` safe location . '' In his tweets , Martin thanked the family 's supporters and the people who will join them to `` make sure that this does n't happen again . '' Martin closed by saying : `` Even though I am broken hearted my faith is unshattered I WILL ALWAYS LOVE MY BABY TRAY . '' Later , Fulton sent out a message that offered thanks to God , whom she said she leans on for support . `` Lord during my darkest hour I lean on you , '' she said . `` You are all that I have . At the end of the day , GOD is still in control . Thank you all for your prayers and support . I will love you forever Trayvon ! ! ! In the name of Jesus ! ! ! '' Tracy Martin and Fulton were in the courtroom for most of the trial , leaving briefly when photos of their dead son were shown one time to the jury . Each of them testified during the two-week trial . They both said they believed it was their son 's voice crying for help on the recording of a 911 call made the night in February 2012 when Trayvon Martin was shot and killed . But two police investigators told the jury that Tracy Martin had said 'no ' when they asked him the same question . The 911 call was played several times , ending with the gunshot that killed Trayvon Martin . The emotional toll of that , of testifying and sitting through all the testimony and the jury selection process was difficult for the family to endure , Parks said . Zimmerman could still be held responsible for Martin 's death . Benjamin Crump , the family 's lead attorney , said Trayvon Martin would have been proud of his parents . `` Your tireless work in the name of your son has made Sanford and many other cities just a little safer for all our children , '' he said . `` I know Trayvon is up there , proud at the changes that you as his parents have inspired in his name . '' When asked what he has to say to Trayvon Martin 's parents , Zimmerman 's brother Robert Zimmerman Jr. said , `` I think it would be remiss of me not to say , I understand tonight , I understand their pain . And there are no winners . They will not win or lose anything more than they already have lost , which is their son 's life , by any kind of verdict for George . `` I applaud them for asking for the verdict to be respected . ... And I will pray for them . '' Analysis : The race factor . CNN 's Allison Gilbert contributed to this story .
NEW : Attorney says Martin family is in secure location , will go to church Sunday . NEW : Tracy Martin and Sybrina Fulton had been in court for most of the trial . NEW : George Zimmerman 's brother says he will pray for family . Martin sent out three tweets ; Fulton sent one .