leonardo-fabbretti and son Dama*A grieving father is trying to get a hold of precious photos of his dead son as he pleads to Apple chief executive Tim Cook for access to the child’s iPhone.

International Business Times reports that Leonardo Fabbretti wrote a personal letter to Cook to convince him to unblock the photo to access the photos, which have been saved inside the iPhone. The father’s 13-year-old adopted son, Dama, passed away in September 2015 after suffering from bone cancer.

Fabbretti adopted Dama from Ethiopia six years ago. In 2013, Dama was diagnosed with bone cancer after a skiing accident. Although he had numerous operations and chemotherapy sessions, Dama,  from central Italy, ultimately died.

Fabretti’s request to unblock his son’s iPhone comes after Apple’s recent refusal of numerous requests from the FBI to help them hack in to the phone of San Bernardino gunman Syed Farook. As a result, the agency sought assistance from Israeli firm Cellebrite to crack Farook’s phone. Should Apple reject his request, Fabbretti stated that he would follow suit and reach out to Celebrate.

“Don’t deny me the memories of my son,” Cook wrote in his letter to Cook, which was dated March 21.

“I cannot give up, the architect added. “Having lost my Dama, I will fight to have the last two months of photos, thoughts and words which are held hostage in his phone.”

Fabbretti goes on to say that he gave Dama an iPhone 6 nine months before his death as he urged Cook to rethink Apple’s privacy policy.

“I think what’s happened should make you think about the privacy policy adopted by your company,” the 56-year-old father said. “Although I share your philosophy in general, I think Apple should offer solutions for exceptional cases like mine.”

IBT noted that Fabbretti revealed that Cellebrite offered to try to open Dama’s phone free of charge.