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Connie Hoagland was seriously injured but survived the blast and testified earlier about the shock of the explosion and the pain of her injuries.

Now, LeeAnn Rupert has traveled from Pennsylvania to testify. Rupert is the "high school sweetheart" that Larry Hoagland had been pursuing. He was applying for jobs in Pittsburgh and told her he had filed divorce papers and was waiting for his bankruptcy to be finalized.

10News asked former prosecutor and current defense attorney Paul Pfingst – who has no connection to the case – to assess the impact of her testimony.

"Whenever the other woman takes the stand that brings a lot of excitement to a trial but in this case what it brings is motive and an anticipation that the relationship with his wife was going to end and end quickly," said Pfingst.

He also commented on the promise by the defense attorney that Larry Hoagland would take the witness stand himself. Pfingst considered the evidence presented in the case so far.

"In this case, the circumstantial evidence is so persuasive that if he doesn't take the stand he's probably going to get convicted, so it's time for a 'Hail Mary,' said Pfingst. "That 'Hail Mary' is looking the jury in the eye and saying, 'Please believe me. I didn't do it.' It's a long shot but it may be the only shot he has."

If convicted, Larry Hoagland could face a life prison term.