What is Charles Darwin's major contribution to science? A. He performed an experiment showing how molecular compounds first formed. B. He categorized - 463782
Confidence votes 39. I belive they were murdered, while gibbs was at war as a sniper for the marines. and then later gibbs ends up shooting the man who killed his wife Shannon, and his daughter Kelly. 1 person found this useful.
D E C E A S E D. Pedro Hernandez was a Mexican drug dealer responsible for murdering Leroy Jethro Gibbs's first wife Shannon Gibbs and their young daughter Kelly Gibbs which occurred while Gibbs was fighting in Desert Storm in or around 1991 with Gibbs later exacting his own revenge by killing Hernandez.