Authorities say Samuelson has made significant strides in his recovery since Saturday, and that he's communicating with family, friends, and colleagues while remaining in good spirits. 

On Tuesday, Samuelson was reunited with his K-9 partner, Bosco.  The two were able to spend time together inside his ICU room.   

LCSO says in the days and weeks ahead, more information will be released when appropriate.

ORIGINAL STORY: LA PORTE COUNTY, Ind. -- New details are emerging in the emergency room shooting that left one La Porte County deputy in critical condition. 

In new probable cause documents, investigators say Deputy Jon Samuelson picked up Sharod Grafton from a disabled car at about 6:34 a.m. near SR 2 and 900 W in La Porte County. Deputy Samuelson then transported Grafton to Franciscan Hospital in Michigan City on Grafton's request. 

After reporting the drop-off to dispatch, Deputy Samuelson was advised that the car Grafton was driving had been stolen at gunpoint in Chicago. Investigators say Samuelson then re-entered the emergency room and followed Grafton to the bathroom door. He then placed his hands on Grafton and escorted him back to the waiting room with Grafton's hands behind his back.

Grafton resisted Deputy Samuelson's attempts to handcuff him. He pulled a gun during the struggle and shot the deputy. Grafton then ran off into a wooded area, where he was arrested. Bullet casings in the emergency room match those found in a gun Grafton dropped off in a truck bed as he ran away.

Investigators spoke with Registered Nurse Vic Mercaldo, who was in the emergency room at the time of the shooting. He told them that Grafton appeared to point the gun directly at him. Mercaldo says he believes Deputy Samuelson's actions may have saved his life.

Investigators later spoke to Grafton's mother, who told them it was her car Grafton stole at gunpoint. Her description of the key ring matches the one found at the scene in Michigan City.

Doctors at Memorial Hospital in South Bend say that the deputy was shot three times: once through his left shoulder, once grazing his right calf, and one through Deputy Samuelson's head behind his left ear. That third bullet exited his neck, then re-entered his neck and became lodged in the deputy's spine. Preliminary medical reports show Deputy Samuelson suffered paralysis from the chest down.

Deputy Samuelson remains in the hospital.

Grafton is charged with three felonies: Attempted Murder, Battery against a public safety official, and Auto Theft.