. >> reporter: authorities say he then went to derby, connecticut where he killed 23-year-old nicolaus police describe the suspect as a 6'3" white male with dishevelled black hair, brown eyes weighing approximately 240 pounds late today, a the family. >> from your parents, we love you. please turn yourself in. >> reporter: erin mclaughlin, nbc news. >>> unlike past memorial days, this year many americans are not traveling, even though gas prices are at the lowest in nearly 20 years and that csky is in one town reeling from the crisis. >> reporter: in curbing oklahoma, down brings a disaster millions gallons of oil filling every storage tank in sight. >> when the oil price turned red, scariest thing i've seen. >> reporter: from his diner on main street, chris has had a front row seat to oil busts before. >> to have both of these situations, the virus and oil business hit us all at one time, it's the only way i can describe it as a blood bath. >> reporter: here in oklahoma the pandemic's impact was almost immediate. the very welcome munty they grew up around pulled up oil nobody wanted a

us yet nicolaus and his team don't know if the regenerative power of these natural forest will be sufficient to face the challenges of the future but they remain optimistic more natural growth and diversity also in our commercial forests is likely to be the best protection against the effects of climate change. during the day the forest cools down while at night it's roughly in one degree boom that's when many woodland has become active but what it truly is do at night if they have a family and are able to defend themselves do they also see. that was a question sent in by pieces still was from the united states. do treaties sleep. we all know human beings need sleep our inner body clock regulates when we feel tired following the earth's cycle of day and night. animals also have body clocks that set the read them for waking and sleeping. many flowers close their petals and hang their heads at certain times of day their resting periods also follow the rhythm of day and night. but what about trees. well it was only a few years ago that scientists were finally able to answer that question with t