Here are the other two collisions:
510317 Dubrovin CPT 151 GIAD/72 GIAP KIA Collision with F-80
510317 Landry, Howeard J. 36 FBS 8 FBW KIA KIA Collision with MiG - blew up
520324 Filippov, Ye.V. SLT 97 IAD/148 GIAP KIA Collision with F-86
520324 Carey, James D 334 FIS 4 FIW MIA Collision - Fillipov
Neither one appears to be a "Taran" attack, just bad luck.