On Our Own Two Feet

In the paragraph before Shema in shacharis, we say, "v'solichei'nu komemiyus l'artzeinu" (and bring us upright into our land). 

Someone described being in Eretz Yisrael this week and seeing large cars driving by early in the morning before the streets are busy.  Upon asking the taxi driver what that was about, the driver sadly said they were the bodies of the four Jews murdered in Paris. 

One way of understanding the words "and bring us upright into our land" is, we should enter the land on our own two feet, upright, not in a coffin.

I wonder what, if any, link there is between four Jews being killed in a shul in Har Nof and four Jews being killed in a kosher store as they shopped for Shabbos.