The North American XB-70 Valkyrie (S/N 62-0207) just before the collision on the 8th of June 1966. Other aircraft are as
follows: Northrop T-38A-15-NO (S/N 59-1601), McDonnel Douglas F-4B-15-MC (S/N 150993), Lockheed F-104A-20-LO
(also known F-104N), (S/N 56-813) with the pilot Joseph Albert Walker and Northrop YF-5A-NO (S/N 59-4989)....
Source: Internet
Walker was killed on June 8, 1966, when his F-104N Starfighter chase aircraft collided with a North American XB-70 Valkyrie. At an altitude of about 25,000 ft (7.6 km) Walker's Starfighter was one of five aircraft in a tight group formation for a General Electric publicity photo when his F-104 drifted into contact with the XB-70's right wingtip. The F-104 flipped over, and, rolling inverted, passed over the top of the XB-70, striking both its vertical stabilizers and its left wing in the process, and exploded, killing Walker. The Valkyrie entered an uncontrollable spin and crashed into the ground north of Barstow, California, killing co-pilot Carl Cross. Its pilot, Alvin White, one of Walker's colleagues from the Man In Space Soonest program, ejected and was the sole survivor.
Source: Wikipedia
The XB-70 can be seen at the far left of the image, missing one of its vertical stabilisers, while the large fireball is the
F-104 Starfighter it collided with.
Source: Wikipedia