FILE - This photo provided by the Macon County Sheriff's Office in Decatur, Ill., shows Brendt Christensen. Prosecutors are building a case based partly on a bloody handprint and responses of a cadaver-sniffing dog that Christensen, a former University of Illinois student, killed a Chinese scholar in his apartment near campus. Prosecutors revealed more of their evidence in a series of public filings, on Wednesday, Feb. 6, 2019, saying it will help prove to jurors that Christensen kidnapped, tortured and killed Yingying Zhang in 2017. (Macon County Sheriff's Office via AP, File)
FILE - This photo provided by the Macon County Sheriff's Office in Decatur, Ill., shows Brendt Christensen. Prosecutors are building a case based partly on a bloody handprint and responses of a cadaver-sniffing dog that Christensen, a former University of Illinois student, killed a Chinese scholar in his apartment near campus. Prosecutors revealed more of their evidence in a series of public filings, on Wednesday, Feb. 6, 2019, saying it will help prove to jurors that Christensen kidnapped, tortured and killed Yingying Zhang in 2017. (Macon County Sheriff's Office via AP, File) AP
FILE - This photo provided by the Macon County Sheriff's Office in Decatur, Ill., shows Brendt Christensen. Prosecutors are building a case based partly on a bloody handprint and responses of a cadaver-sniffing dog that Christensen, a former University of Illinois student, killed a Chinese scholar in his apartment near campus. Prosecutors revealed more of their evidence in a series of public filings, on Wednesday, Feb. 6, 2019, saying it will help prove to jurors that Christensen kidnapped, tortured and killed Yingying Zhang in 2017. (Macon County Sheriff's Office via AP, File) AP