Authorities in Wisconsin are continuing to search for a missing 3-year-old boy whose mother was found murdered last week.

As CrimeOnline previously reported, authorities issued an AMBER Alert for 3-year-old Major P. Harris after his mother Mallery M. Muenzenberger was found dead of an apparent homicide in a yard in Milwaukee on Thursday. The mother and son reportedly lived in La Crosse, which is over 200 miles from Milwaukee. Major’s father, who reportedly lived in West Virginia, , told TMJ-4 that he doesn’t know why the boy and his mother were in Milwaukee.

It remains unclear exactly when or where Major P. Harris was last seen. As previously reported, the  Milwaukee Journal-Sentinel obtained multiple police reports that showed conflicting information about the boy’s last known location. One report stated that he was last seen in October 9, possibly traveling to Milwaukee from La Crosse. Another stated he was last seen on October 15, the day of his mother’s murder.

According to a Wisconsin Public Radio report, authorities have not confirmed that Major was present at the site of his mother’s murder. The report states that police did not know that the boy was in his mother’s care until they contacted relatives to notify them of her death.

Police identified 20-year-old Jaheem K. Clark as a suspect in Muenzenberger’s murder and the boy’s disappearance. On Sunday, authorities apprehended the suspect at a residence in Milwaukee, but he fatally shot himself as police were approaching. Investigators did not locate the boy at the scene or in the suspect’s vehicle, which was reportedly found on Monday.

“We did find a quantity of blood in the vehicle,” Milwaukee Police Department inspector Paul Formolo told reporters at a news conference on Tuesday, according to Wisconsin Public Radio. “Obviously, that is the evidence that we have out to (a) Wisconsin regional crime lab and I can’t say where that would have originated from. But hopefully they’ll be able to give us some answers in the coming days.”

“We sure hope that Major is alive,” Formolo said, adding that he was concerned police have not yet located the missing boy. “We need information to assist us as we further this investigation. We need the community’s help.”

Anyone with possible information is urged to call the Milwaukee Police Department Sensitive Crimes Division at 414-935-7405.