Triangle crafts in V formation slowly flew over parking lot in Los Angeles Crenshaw shopping area

3 triangle shape craft about a football field in size, flying in formation very low almost tree top level. completely silent,  
I could make out the detail of the construction, grills and what not. 
Came in from the north over the Crenshaw shopping center heading south towards LAX. two commerical aircraft were on approach at LAX at the same time. The trianglur crafts move very slowly over the parking lot where everyone stood in total aw of what we were looking at. 
My cousin was standing next to me and there was  a guy in the car  in front of us on the CB radio describing the scene to some one as it happen. 
They floated over in a V shape formation with the lead one lower then the other two. no sound at all not even a hum. 
a sense of fright came over me, I was looking at something not god or man made for sure.
Witness indicates that date of incident is approximate.  PD