The bassist died after falling while house-sitting for a friend.
The author of "Los Caminos de la Vida" died May 21 in Valledupar, Colombia.
Global fame came when he won the Oscar for best original score in 2005 with the biographical fantasy Finding Neverland.
Wysocki played on seven of the band's eight albums.
The musician was battling prostate cancer.
Thompson was in the hospital recovering from an April heart attack.
The beloved, dogmatic music purist suffered a fatal heart attack on Wednesday (May 8).
She also portrayed Jean Harlow in a telefilm about Howard Hughes and starred with Sharon Stone in Wes Craven’s Deadly Blessing.
The musician was the last surviving artist to chart in the top 10 of the inaugural Hot 100 in 1958.
Olvera was shot dead over the weekend in Puebla, Mexico.
