Video: The Infamous D.C. Mansion Murders

Christy Bautista reportedly yelled for help before she was stabbed to death on March 31 inside a hotel room in Washington, D.C.

Capt. Mike Ponzillo from the Waterbury Police told Callahan Walsh when he arrived, "One of the worst scenes of my career, Mrs. Orso was stabbed nearly 30 times... 37 times was the final number." Investigators said he has a history of drug use and may have had surgery on his nose due to excessive heroin use. If you know where Ervis Mecollari is hiding out, please call or text our hotline. Host John Walsh guarantees you can remain anonymous: 833-378-7783 (3-PURSUE).

Investigators say Adarus Black has connections to Ohio, Tennessee, Michigan and California. His arms are covered in tattoos. If you have any information on his whereabouts, please call or text the IN PURSUIT hotline. John Walsh guarantees you can remain anonymous: 833-378-7783 (3-PURSUE).

Margaret Lorrain Smith stands 5 feet 6 inches tall and weighed 185 pounds when she vanished. She has a mole on the right side of her hairline and a small mole under her right eye. She's currently on the Texas Department of Public Safety's Top 10 Most Wanted for capital murder. If you know where she's hiding out, please call our hotline. Host John Walsh guarantees you can remain anonymous: 833-378-7783 (3-PURSUE).

Two murder warrants issued for same suspect in a six month period. Authorities were also looking into the possibility that Pedro Espinoza was allegedly involved in another murder in Mexico. If you have any information on Espinoza please contact our hotline directly. You can always remain anonymous and you can text information 24/7: 833-378-7783 (3-PURSUE).

Plus: Smuggler caught with 52 reptiles concealed in his clothing; missing Hawaiian man found encased in concrete; correctional officer accused of killing his girlfriend; and film director mistakenly handcuffed after bank reports robbery.

Jessica Chambers suffered an agonizing death: Firefighters saw her walking toward them, wearing only her underwear & burned over 93 percent of her body.

James Charles Tooley was connected to the 2008 double homicide after his cousin turned him in.

McKinley ‘Mac’ Phipps said he had stopped believing in people and the system: ‘Everything was just dark.’