Jan. 4: Marcus fell from a second-story window at the home of his biological mother, Donna Trevino, on Grimes Street in Middletown. The boy received stitches on his chin and in his mouth. The incident was declared an accident.

April 22: Marcus was found wandering on a street by himself. The child was almost struck by a vehicle, Middletown Police report. Marcus and his two siblings were removed from Trevino's home. The boy's bedroom had a foam mat, and there were feces on the walls and carpet, police said.

May: Butler County Children Services contracted with Lifeway for Youth, a network foster care provider, to place Marcus in the home of Liz Carroll and David Carroll Jr. in Union Twp.

Aug. 4: Authorities say the Carrolls placed Marcus in the closet while they attended a family reunion in Williamstown, Ky.

Aug. 10: A caseworker visited the Carrolls' home and is turned away after Liz Carroll said Marcus was sick and asleep.

Aug. 15: Liz Carroll reportedly collapsed while taking four children to Juilfs Park in Anderson Twp. When authorities arrived, only three children were present. Marcus was declared "critically missing."

Aug. 16: The search for Marcus, involving 2,000 volunteers, is scaled back. Volunteers are asked not to come to the park where the boy went missing.

Aug. 17: Jeff Ruby, a well-known businessman offers $10,000 for information to help find Marcus.

Aug. 18: The search for Marcus is called off.

Aug. 20: The Rev. Don Shepherd leads a vigil at Jacot Park in Middletown for the community to join Trevino in prayer for the safe return of Marcus.

Aug. 22: Liz Carroll makes a public plea for help in finding Marcus at a news conference. She wore the same clothes she was wearing when Marcus allegedly went missing after she allegedly collapsed at Juilfs Park. She claims also police said her husband fails his lie detector test.

Aug. 28: The Carrolls are charged with involuntary manslaughter in the death of Marcus. David Carroll also is accused of burning the boy's body.

Aug. 29: State orders investigation of Lifeway for Youth, the agency that placed Marcus with the Carrolls.

Sept. 1: Hamilton County Prosecutor Joe Deters and Clermont County Prosecutor Dan White announce the Carrolls will be tried for murder in Clermont County, and they'll be looking for life sentences.

Aug. 30: The Carrolls plead not guilty to all charges and are held on bonds of $10.1 million each.

Sept. 5: Trevino files a $5 million wrongful death lawsuit against Butler County Commissioners, Butler County Children Services, Lifeway for Youth, David and Liz Carroll, and Amy baker, who was living with the Carrolls while Marcus was in their care.

Sept. 6: The Carrolls are indicted by a Clermont County grand jury on seven felony charges each, including murder, involuntary manslaugter, kidnapping, felonious assault and three counts of endangering children. David Carroll faces an additional charge of gross abuse of a corpse for allegedly burning Marcus' body in a stone chimney in rural Brown County.

Sept. 7: The Carrolls are arraigned in Clermont County Common Pleas Court. Their attorneys entered not guilty pleas on their behalf. Judge Jerry R. McBride set their bond each at $10.1 million. Also, Hamilton County Coroner O'dell Owens releases findings into the cause of Marcus' death. He said his staff collected 18 human bones — which all fit into the size of a hand — from the stone chimeny and determined the remains belonged to an infant child. He said the remains indicated the child was burned. Owens said they will rely on DNA tests to confirm if the remains belong to Marcus, though he is confident they belong to the boy.