From THE NEW YORK TIMES:
Prosecutors said investigators had determined that two priests who died last year had wanted to commit suicide and used hired killers to do the job. The priests hired the gunmen after one, the Rev. Rafael Reatiga, discovered he had AIDS.
The chief investigator of the prosecutor’s office, Maritza González, said Tuesday as two of the four suspects appeared before a judge for processing that the two priests had originally planned to throw themselves off a cliff into a canyon north of Bogotá but that they apparently could not bring themselves to do it. Investigators said they located the suspects based on telephone numbers the priests had called from their cellphones.
There will never be any proof but I know who I blame.