Law enforcement has concluded their investigations into threats that caused lockdowns at multiple schools in Escanaba, Michigan, and surrounding areas, determining there was no danger to students and campuses have resumed normal operations. Meanwhile, authorities announced the arrest of an Alabama man who allegedly threatened a Southern California monastery last month. Escanaba Area Public Schools, Gladstone Schools, Holy Name Catholic School, and Bay College were placed on lockdown out of an abundance of caution following the receipt of threatening messages. Law enforcement is working to identify a suspect in the Michigan incidents, which are believed to be unfounded. Separately, an Alabama man, who reportedly called himself the "Angel of Death," is accused of making a cross-country trip to threaten a Catholic abbey in Southern California, according to NBC News. In Lowell, Massachusetts, police identified a juvenile who brandished an air gun replica yesterday near the UMass Lowell campus, which had triggered a large police response and a shelter-in-place order. The juvenile has not yet been arrested, according to reports. Separately, a press conference is scheduled for 3:00 PM Eastern today in Tampa, where Attorney General Pamela Bondi and U.S. Attorneys will announce enforcement efforts to combat human trafficking and smuggling on U.S. borders, according to the U.S. Attorney's Office for the Middle District of Florida. There was also a report of an active shooting in Delta County, Michigan, with authorities searching for a suspect possibly associated with a white truck. Multiple drones were deployed, and a school near the area was evacuated, with additional units staged at other schools. Information on the number of people shot was not immediately available.