JJ: very good, to the point answer. Thankyou. I believe any hit man used with Luna might have his own techniques, and other murders would likely be different for several reasons. But your comments about jurisdiction and the lack of conversatiom are important.
(I grew up a half mile from PSU campus, learned to ice skate/hocky there.)
I was there for three years.
Really, looking at the circumstances, even assuming both were criminal, the MO is widely different, even to location and time of day.
Here was my list:
A. Mr. Gricar left from home; Mr. Luna left from the office.
B. Mr. Gricar left early to mid morning; Mr. Luna left after 11:30 PM.
C. Mr. Gricar drove about 56 miles, on a relatively direct path; Mr. Luna drove a minimum of 190 miles on a very indirect path.
D. Mr. Gricar took his cell phone; Mr. Luna left his behind in the office.
E. Mr. Gricar took the day off; Mr. Luna was suppose to fax a plea agreement that night, and was expected in court the next day.
F. Mr. Gricar phoned his girlfriend from the road; Mr. Luna had no contact with his wife or family members after he left.
G. The Mini Cooper, the car Mr. Gricar was driving, was found in a fairly densely populated area; Mr. Lunas car was found in a rural area.
H. The Mini showed no evidence of a crime; Mr. Lunas car had a large amount of blood.
I. The Mini was parked, engine off; Mr. Lunas care was in a ditch, with the engine running.
J. Mr. Lunas body was found; there was no effort to hide it. Mr. Gricars body was never found.
I looked at the background of both, and there just wasn't anything to connect them.
I believe that JPL's wounds were self inflicted, though there might not have been an intent to commit suicide.