The trial against James Wells is now into week four and Wednesday was the final day of witness testimony.
Wells is charged with killing Coast Guard Electrician's Mate First Class James Hopkins and retired Chief Boatswain's Mate Richard Belisle on the morning of April 12, 2012.
The defense has argued that Wells wasn't at the scene of the crime -- Coast Guard Communications Station Kodiak, where he worked with the dead men. Wells' attorneys say he spent nearly 25 minutes in a bathroom on the day in question, before returning home to fix a flat tire on his pickup truck.
The prosecution has presented expert testimony it says shows the truck's tire was punctured by a nail that had been inserted manually, likely with a nail gun.
On a day when the prosecution called a dozen rebuttal witnesses to the stand, Wells' bathroom visit was called into question.
Two employees of Servant Air at the time of the murders testified that no one had used the bathroom in their building, where Wells claimed he stopped on the morning in question.
Also taking the stand was a longtime friend of the defendant's wife, Nancy Wells.
Kodiak resident Judy Pletnikoff said after the murders, Wells asked her if the FBI had contacted her.
When she said yes, she says Wells told her, "I told you not to talk to them. I told you to slam down the phone."
Wells did not take the stand in his own defense. With the prosecution resting its case the question of Wells' guilt is closer to being in the hands of the jury.