Prince George's County December 19, 2019 7:44 pm Video Evidence Revealed After Man Convicted in UMd. Killing Newly released video shows how Sean Urbanski behaved after stabbing and killing Richard Collins. Prince George’s County Bureau Chief Tracee Wilkins reports. Local 1:27 1 dead, 4 hurt in Suitland crash 3:27 How the pulley system helps first responders make rescues 0:24 1 killed, 23 others hurt in Maryland party bus crash 1:05 Court docs reveal moments leading up to Dunbar High School shooting that hurt teen 2:29 George Washington University president says pro-Palestinian encampment is ‘unlawful'