A secret midnight stroll to the Rikers Island shower room with an accused cop killer will land a jail guard on the wrong side of the bars, sources said.
Kadessha Mulgrav is under investigation for possibly having sex with Lee Woods, who is charged with killing Russel Timoshenko a year ago.
Video surveillance caught the pair striding into the shower room, sources said. There were no cameras in the bathing area.
The 34-year-old correction officer is also suspected of slipping Woods a handcuff key and a SIM card for a cell phone, sources told the Daily News Saturday.
Mulgrav, of Springfield Gardens, denied having sex with Woods, 29, or giving him the handcuff key, but had no answer for why she took a high-security prisoner into the showers alone after hours, sources said.
The guard has been transferred from Rikers and her arrest is imminent, sources said.
Investigators are trying to figure out exactly what motivated Mulgrav to help an alleged cop killer.
"The question is, why?" a source said. "Fear? Or worst of all, that she was having sex with him."
Betrayal and anger gripped the parents of the fallen cop when they learned that a jail guard may have helped their son's accused killer try to escape.
"They deserve a jail cell next door to him!" Timoshenko's mother, Tatyana, said of Mulgrav.
Two other correction officers are accused of giving the suspect drugs and other contraband.
The disclosures came as a blow to the parents of Timoshenko, who was gunned down during a traffic stop in Brooklyn.
"They should be charged just the same because they are criminals just the same," the slain cop's mother said of Woods' helpers. "They're making other officers look bad."
The security breach came to light June25, when the key was spotted in Woods' digestive system by a metal detector before a court appearance, sources said.
Later that day, rookie officers August Durand, 31, and Michael Santiago, 24, were axed for allegedly giving Woods marijuana, cigarettes, rolling papers and swigs of booze.
Her voice filled with anger, Timoshenko's mother struggled to find the right words to express her outrage at the guards. "They should have been on the same side, but they ended up on the side of crime," she said. "They're worse than animals. They don't deserve to live."
News of the disturbing escape plot comes as the Timoshenkos grapple with the one-year anniversary of their son's death.
On July 9, 2007, Timoshenko and partner Herman Yan were shot after pulling over a stolen $50,000 BMW carrying Woods, Dexter Bostic and Robert Ellis. Yan recovered and later returned to work, but Timoshenko, 23, died from his injuries five days later.
"It's been a year, and it doesn't get easier," the mom said. "It's just like it happened yesterday."
Woods has a history of violence behind bars, having racked up 70 infractions at Rikers for assault, attempted arson and contraband. He accumulated 26 violations during a five-year stint in state prison.