steven kwei and professor richard moeller said the most damaging evidence in the lab leak is in the ownome. the presence of something called a double see cg sequence with covert it came from a lab. why? this happens to be a sequence commonly used in gain of function research, which we know was happening at the wuhan lab. here is a really part. the dna combination and coronavirus' have never been found in nature. they write "at the minimum this with the leading theory of coronavirus must be laboratory escape here are those two scientist joined me now, dr. steven kwei founder of therapeutics and professor richard muller of physics at the university of california of berkeley. dr. steven, let's start with you. you say a second key piece of evidence pointing to a lab leak but explained that. >> so it is the concept and all infections where they come from nature, nature gives us a break and jumps to humans but then human to human transmission can't be sustained. that is month to year process. but here, not only did the first patient gets very sick but they were able to transmit human to human