Albany County Chief Assistant District Attorney Michael McDermott said,"I think the e-mails are pretty important."

Defense Attorney Terence Kindlon said, "The final one is of the...everything is forgiven, everything is under control."

E-mails between Peter Porco and his son Christopher showed a deteriorating relationship until just before the murder. But jurors have been instructed not to evaluate the e-mails for what they say, but for the state of mind of both Peter and Christopher at the time. Legal expert Paul DerOhannesian said the problem with that is the jurors are only human.

He explained, "I think what's important this week has been the prosecution's ability to focus on the defendant, his behavior and his conduct and his motives."

While the focus has been on the e-mails and testimony that Peter called his son a "sociopath," the prosecution believes their timeline which they said puts Christopher at the murder scene received a boost when a fellow student of Porco's testified she saw him jogging on campus the morning of the attack.

McDermott said, "It means he was running back to his dorm from his car before people realized he wasn't sleeping on the couch."

Of course, the defense said that's ridiculous -- arguing it matches with Christopher telling friends he went for a jog after sleeping in a dorm lounge. Still, it may be significant because there's surveillance video of the student walking where she said she was at the same time seen on the video clip of her doing just that. Though the same surveillance system caught Porco's yellow Jeep leaving campus the night of the attack, the timestamps have repeatedly been kept out of evidence because of concerns over accuracy.

Defense Attorney Laurie Shanks said, "They're going to prove conclusively that it was Christopher's Jeep that left campus, which we already know because it was later found on Genesee Street."

DerOhannesian said, "The reality is the jurors are seeing the footage with time markings on them and told by the judge to disregard them, which is a little bit like trying to unring the bell. It's not possible."

The jurors will have to weigh it all as the trial continues Monday.