." >>> i'm jeff pegues in washington. thanks for staying with us. russian oligarchs are feeling the pinch of western sanctions over the invasion of ukraine. m mansions and luxury yachts seized, bank accounts frozen. and the ability to travel to much of europe and the u.s. are banned. some of these oligarch billionaires insist they are getting a raw deal. here's seth doane. >> reporter: you have billions of dollars in a bank. >> yeah, i have a pretty sizable amount of money. >> but you can't touch it? >> no, not at all. >> reporter: he's a billionaire with no access to cash, because this month, mikhail fridman became another russian oligarch to be slapped with sanctioned. how did you learn you were sanctioned? >> from tv. >>e nowhere to hide. >> we're coming for your ill-begotten gains. >> all of these measure also significantly harm putin's ability to finance his war. >> reporter: to punish russian president vladamir putin for invading ukraine, the u.s. and allies are foregoing military intervention and using the financial weapon of sanctions, aimed

norah. >> o'donnell: jeff pegues, thank you. are tragic new details tonight in the investigation into a 14 year old boy's fatal fall last month from an amusement park ride in orlando, florida. we get more from cbs's manuel bojorquez. >> this report confirms our department findings of the operator of the orlando drop tower made manual adjustments to the ride resulting it in being unsafe. >> reporter: a forensic investigation into what lead to the death of 14 year old tyree sampson last month on the orlando free fall ride highlights a sensor on the ride's harnesses that signals when the gap below the harness is near three inches. what the report calls normal. it ays the sensor on sampson seat was manually loosened, adjusted and tightened to allow restraint opening of near seven inches, which may have grown to as much as ten inches as the ride's 70 mile per hour drop slowed and sampson slipped out. >> these allow the safety light to illuminate. improperly satisfying the ride's electronic safety mechanisms that allow the ride to ope

here's cbs's jeff pegues. >> the easter holiday weekend didn't bring health to america's streets. >> they got shot. >> in south carolina there were two mass shootings, 14 people wounded when gunshots erupted at this mall. another nine hurt after a shooting in a club run out of this home. >> in pittsburgh two 17 year olds were killed and ten wounded after more than 100 rounds were fired inside a packed underage party early sunday morning. scots schubert is a pittsburgh police chief. >> how would you characterize this kind of violence? >> senseless. i mean there is no need for this. it is just, it breaks your heart when you start thinking bh what happened in pittsburgh. it seems like eve just, you look and you see it is happening somewhere else. >> in the first four months of the year there have been 144 mass shootings. among them, new york city subway shooting, six killed and 12 wounded in downtown sacramento, two dead in cedar rapid, eye watch. ten shot on spring break in dallas. the number two official at the atf told us guns used by criminals are being modified and turned into full

here's cbs' jeff pegues. >> the firearms, narcotics search warrant. anybody have any questions?porter: shortly before 6:00 a.m. swat teams in buffalo are prepping to serve search warrants. what could go wrong? >> i mean, worst-case scenario, someone could lose their life. >> reporter: part of a new federal and local strategy against violent crime and murder. lead f.b.i. agent steve belongia says during the pandemic homicides surged. >> crime spiking, blood in the streets, you have to do something now. >> reporter: the tactical units just breached this home right here. they're looking for a suspect in connection with a drug case. here in buffalo the fbi and local police change their strategy, focusing on cases that can be solved quickly, sharing intelligence and using federal charges against some suspects to keep them off the streets and in jail. >> so, he had fentanyl, shotguns. >> fentanyl and shotguns so far. >> we have an ability to hold people. we have the ability to protect our sources. >> reporter: the f.b.i.'s top criminal agent luis quesada says the changes have paid off

here's cbs' jeff pegues. >> the firearms, narcotics search warrant. anybody have any questions?reporter: shortly before 6:00 a.m., s.w.a.t. teams in buffalo are prepping to serve search warrants. what could go wrong? >> i mean, worst-case scenario, someone could lose their life. >> reporter: part of a new federal and local strategy against violent crime and murder. lead fbi agent steve belongia says during the pandemic homicides surged. >> crime spiking, blood in the streets, you have to do something now. >> reporter: the tactical units just breached this home right here. they're looking for a suspect in connection with a drug case. here in buffalo the fbi and local police change their strategy, focusing on cases that can be solved quickly, sharing intelligence and using federal charges against some suspects to keep them off the streets and in jail. >> so, he had fentanyl, shotguns. >> fentanyl and shotguns so far. >> we have an ability to hold people. we have the ability to protect our sources. >> reporter: the fbi's top criminal agent luis quesada says the changes have paid of

here's cbs's jeff pegues. >> reporter: the easter holiday weekend didn't bring peace to america's streets. >> they got shot. >> reporter: in south carolina there were two mass shootings, 14 people wounded when gunshots erupted at this mall. another nine hurt after a shooting in a club run out of this home. in pittsburgh, two 17-year-olds were killed and ten wounded after more than 100 rounds were fired inside a packed underage party early sunday morning. scott schubert is a pittsburgh police chief. how would you characterize this kind of violence? >> senseless. i mean there is no need for this. it is just, it breaks your heart when you start thinking about what happened in pittsburgh. it seems like every day you just, you look and you see it is happening somewhere else. >> reporter: in the first four months of the year, there have been 144 mass shootings. among them, new york city subway shooting, six killed and 12 wounded in downtown sacramento, two dead in cedar rapids, iowa. ten shot on spring break in dallas. the number two official at the atf told us guns used by criminals are being