Vallejo Police Department DNA UPDATE for July 1, 2019
"The lab work has turned into more lab work. VPD is still at it. The hunt continues…"
https://www.tapatalk.com/groups/zodiack … t8603.html
More lab work sounds much better than a dead end.
https://en.wikipedia.org/wiki/Low_copy_number
LCN is an extension of Second Generation Multiplex Plus (SGM Plus) profiling technique. It is a more sensitive technique because it involves a greater amount of copying via polymerase chain reaction (PCR) from a smaller amount of starting material, meaning that a profile can be obtained from only a few cells, which may be as small as a millionth the size of a grain of salt, and amount to just a few cells of skin or sweat left from a fingerprint.
Yes that is great news and now they don’t need a envelope to get the DNA , the letters themselves have enough cells on them.