concerned about her son david. >> this is my son david. this is when he was 16. when i look at the photograph, it just makes me think of the good times that we've had together. he's funny. he's always -- he's always making me laugh. and that's what i miss most about him. >> since they were arrested, dimauro has seen link only once during a court hearing. >> when i went to court, my son david did a heart motion. like this. he put his hands like this in a heart shape and he said that he loved me. he couldn't speak out loud but he motioned his lips i love you. it made me just burst out crying. >> link has accepted a plea deal for his role in the murder and could be called to testify against his mother and ackerman. >> i don't want to testify against no one but i've always been a firm believer that the truth will set you free and everything. this whole entire crime was way against my morals. so the easiest way for me to