Top of 3 30' to 40' long needled pines dying out (rust orange color)

I do not know the name of the tree. I bought them at Home depot 15 years ago.
5 needle clumps, 2" to 5" long they are like a Soft Brush.
Branches extend from the trunk like spokes of a wheel, in tiers, rather than sporadically or randomly .
Branches are very horizontal not upward angled.
A fairly smooth Whitish grey trunk.
Lower branches seem very healthy, but the top 3 1/2 feet are dead. The near by:Blue spruce and scotch pine, Ponderosa pine and Austrian Pine all look very healthy.

Can you help me?

Thanks, Timothy White

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