Jury selection has just begun in the trial of former Penn State assistant football coach Jerry Sandusky, but already damning evidence is emerging that could make the case against the accused child molester an open-and-shut matter.

A man currently known only as Victim 4 has submitted as evidence a series of letters that he claims were written to him by Sandusky. The now 28 year-old accuser is expected to be the first to take the stand against Sandusky and will present a number of expensive gifts that Sandusky allegedly bought for him, as well as the letters, which he received as a child and which sources close to the case have described as “creepy.” Victim 4′s lawyer claims that the letters and other evidence that his client plans to present “will really resonate with the jury.”

Sandusky faces 52 counts of child sex abuse from 10 accusers. If convicted, he could receive a prison sentence of over 500 years. His trial is expected to begin on Monday.